**Reference Guide**
===================================
..
This manual provides a detailed list of all the input keywords and
options available in Radioss.
This chapter covers the following:
• File Extensions and Formats (p. 14)
• Single File Input (p. 16)
• New Keywords in 2022 (p. 17)
• Starter Input (p. 20)
• Engine Input (p. 2744)
• LS-DYNA Input (p. 3080)
• Optimization Keywords (p. 3370)
• Multi-Domain (p. 3469)
• Other Files (p. 3481)
• Definitions (p. 3511)
*Altair Radioss 2022*
**File Extensions and Formats**
=============
Radioss format 2022 uses the 12x extension format.
+----------------+----------------------+---------+---------+---------+---------+---------+
| |12x | Type | Format | Remark | Readby | Written |
|4x |Extension | | | | | by |
|Extension |Format | | | | | |
|Format | | | | | | |
+================+======================+=========+=========+=========+=========+=========+
|``RunnameD00`` |``Runname_0000.rad`` | Starter | | | |Hyper |
| | | input | ASCII | | Starter |Crash |
| | | | | | | |
| | | | | | |HyperMesh|
+----------------+----------------------+---------+---------+---------+---------+---------+
| N/A |``Runname.radopt`` | | | | Opti |Hyp |
| | | Optim | ASCII | | Struct |erCrash |
| | | ization | | | | |
| |(13x extension) | | | | |HyperMesh|
| | | Input | | | | |
+----------------+----------------------+---------+---------+---------+---------+---------+
|``RunnameDnn`` |``Runname_run#.rad`` | | | | |Hyp |
| | | Engine | ASCII | | Engine |erCrash |
| | | input | | | | |
| | | | | | |HyperMesh|
+----------------+----------------------+---------+---------+---------+---------+---------+
|``RunnameRnn`` |``Runname_run#_cpu #``| Restart | Any | | Engine | |
| | | file | | Default | | Starter |
| | | | | | | |
| |``[_C].rst`` | | | binary | | Engine |
+----------------+----------------------+---------+---------+---------+---------+---------+
|``RunnameAnnn`` |``RunnameAnnn`` | | IEEE | | | |
| | |Animation| | |HyperView| Engine |
| | | | binary | | | |
+----------------+----------------------+---------+---------+---------+---------+---------+
| N/A |``Runname.h3d`` | | H3D | | |Engine |
| | |Animation| | |HyperView| |
| | | | | | |(starting|
| | | | | | |in 2018) |
| | | | | | | |
| | | | | | |or |
| | | | | | |HvTrans |
| | | | | | | |
| | | | | | |through |
| | | | | | | |
| | | | | | |run |
| | | | | | |script |
+----------------+----------------------+---------+---------+---------+---------+---------+
|``RunnameTnn`` |if Radioss Engine | Time | Any | Default | Hyper | Engine |
| |option | history | | | Graph | |
| | | | | IEEE | | |
| | | | | | | |
| |/TH/VERS/41 is used | | | binary | | |
| |(default): | | | | | |
| | | | | | | |
| |``RunnameTnn`` | | | | | |
| | | | | | | |
| | | | | | | |
| |if Radioss Engine | | | | | |
| |option | | | | | |
| | | | | | | |
| |/TH/VERS/51 is used: | | | | | |
| | | | | | | |
| |``Runname_run#.thy`` | | | | | |
+----------------+----------------------+---------+---------+---------+---------+---------+
|``RunnameTnnx`` |if Radioss Engine | Time | Any | Default | Hyper | Engine |
| |option | history | | | Graph | |
| | | | | IEEE | | |
| | | | | | | |
| | | | | binary | | |
| |/TH/VERS/41 is used | | | | | |
| |(default): | | | | | |
| | | | | | | |
| |``RunnameTnnx`` | | | | | |
| | | | | | | |
| |if Radioss Engine | | | | | |
| |option | | | | | |
| | | | | | | |
| |/TH/VERS/51 is used: | | | | | |
| | | | | | | |
| |``Runname_run#_x.thy``| | | | | |
| | | | | | | |
| |"x": letter (a to i) | | | | | |
+----------------+----------------------+---------+---------+---------+---------+---------+
|``Runname@Tnn`` |``Runname_run#_@thy`` | MNOISE | Any | | Hyper | Engine |
| | | file | | | Graph | |
+----------------+----------------------+---------+---------+---------+---------+---------+
|``RunnameLnn`` |``Runname_run#.out`` | Listing | ASCII | | | Engine |
| | | | | | | |
+----------------+----------------------+---------+---------+---------+---------+---------+
|``RunnameYnnn`` |``Runname_nnnn.sty`` | Output | ASCII | | Starter | Engine |
| |or | | | | | |
| | | | | | | |
| |``RunnameYnnn`` | | | | | |
| | | | | | | |
| |according to /IOFLAG | | | | | |
| | | | | | | |
| |if Irooty = 2: | | | | | |
| | | | | | | |
| |``RunnameYnnn`` | | | | | |
| | | | | | | |
| |if Irooty в‰ 2: | | | | | |
| | | | | | | |
| |``Runname_run#.sty`` | | | | | |
+----------------+----------------------+---------+---------+---------+---------+---------+
| N/A |``Runname_nnn#.sta`` | State | ASCII | | Starter | Engine |
| | | file | | | | |
+----------------+----------------------+---------+---------+---------+---------+---------+
| |``Runname_nn.dynain`` | State | ASCII | | | |
| | | file | | | | |
| | | | | | | |
| | | with LS-| | | | |
| | | | | | | |
| | | DYNA | | | | |
| | | | | | | |
| | | format | | | | |
+----------------+----------------------+---------+---------+---------+---------+---------+
|``RunnameCnn`` |``Runname_run#.ctl`` | Control | ASCII | | Engine | User |
| | | file | | | | |
+----------------+----------------------+---------+---------+---------+---------+---------+
**Comments**
^^^^^^^^^^^^
..
**1.** Max ``Runname`` length is 80 characters and the characters "/" and "\\" may not be used.
**2.** ``run#:`` Radioss run number (four digits) from 0000 to 9999.
**3.** ``cpu #:`` number of SPMD processors (four digits) from 0001 to 9999.
**4.** ``C:`` restart letter (see /RFILE/n in the Radioss Engine Input manual).
**5.** In case of Single File Input, Engine options can be added into Starter file. See Single File Input for details.
**6.** Though the current version of Radioss is able to read 4.x extension input files, output files always follows 12.x extension format.
**Single File Input**
================
..
This format allows running either Starter or Engine with the same file.
Filename convention is ``ROOTNAME_0000.rad.``
The file must start with::
#(blank) RADIOSS
..
The Engine options in the single file must be:
• Placed in the beginning of the single file
• Finish with ``/END/ENGINE``
The Starter options must:
• Start with ``/BEGIN``
• Finish with ``/END``
Syntax has to be written as::
#(blank) RADIOSS
Engine options
.
.
.
/END/ENGINE
#
#
/BEGIN
Starter options
.
.
.
/END
**Comments**
^^^^^^^^^^
..
**1.** Engine options must be in the main file, ``#include`` is not supported in the Engine file.
**2.** In case of restart, it is sufficient to regenerate the Engine file alone.
**3.** Multiple Engine instances are not supported in the Single File Input.
**New Keywords in 2022**
================
New and modified features in Radioss.
**2022**
+-----------------------------------------------------------------------+
| |image72| **Note:** Please print this page for future reference. |
+-----------------------------------------------------------------------+
New Starter Keywords
..
• /EBCS/NRF - New boundary condition option generalized for all ALE material laws
• /EOS/IDEAL-GAS-VT - Ideal gas equation of state (volume – temperature)
• /FAIL/ORTHBIQUAD - Orthotropic strain-based failure model
• /INIBRI/EREF - Option to initialize solid element with total or small strain formulation
• /MAT/LAW114 (SPR_SEATBELT) - 1D seatbelt spring material set
• /MAT/LAW117 - Mixed mode with linear softening
• /MAT/LAW200 (MDS) - Multiscale Designer material law
• /PROP/TYPE27 (SPR_BDAMP) - Damper spring property with one translational DOF
• /RETRACTOR/SPRING - 1D retractor for seatbelt
• /SLIPRING/SPRING - 1D slipring for seatbelt elements
• /TH/RETRACTOR - Time history output for the retractor element (``/RETRACTOR``)
• /TH/SLIPRING - Time history output for the slipring element (``/SLIPRING``)
• /TH/TRIA - Time History output for the ``/TRIA`` element
Modified Starter Keywords
..
• /ALE/MAT, /EULER/MAT - Removed *Flrd* flag
• /FAIL/ALTER - Added new failure model based on Phd Thesis of Christopher Brokmann
• /FAIL/GURSON - Added parameter :math:`L_{e}^{MAX}` for automatic non-local length computation
• /INIBRI/STRA_F and /INIBRI/STRA_FGLO - Added new fields *nptr*, *npts*, *nptt*, and *nlay*
• /INIBRI/STRS_F and /INIBRI/STRS_FGLO - Added new fields *nptr*, *npts*, *nptt*, *nlay* and *grbric_ID*
• /INTER/SUB - Added feature to scale the damping value function of time with user input function
• /LOAD/PBLAST - Added feature to correlate positive impulse in addition to positive peak pressure
• /MAT/LAW34 (BOLTZMAN) - Material compatible with shell (``/SHELL`` and ``/SH3N``) elements, beam elements (``/BEAM``) and truss elements (``/TRUSS``)
• /MAT/LAW35 (FOAM_VISC) - Added new strain rate filtering
• /MAT/LAW43 (HILL_TAB) - Added new strain-rate filtering parameters, :math:`F_{cut}` and :math:`F_{smooth}`
• /MAT/LAW57 (BARLAT3) - Added strain rate filtering
• /MAT/LAW78 - Added new parameters :math:`C_{1}^{KH}` and :math:`C_{2}^{KH}`.
• /MAT/LAW80 - Enhanced with new developments in hot stamping/press hardening to better predict the martensite volume fraction
• /MAT/LAW83 - Added option :math:`I_{comp}=1`
• /MAT/LAW87 (BARLAT2000) - Added new hardening formulation based on Chaboche & Rousselier formulation and Hansel formulation
• /MONVOL/FVMBAG1 and /MONVOL/FVMBAG2 - Added new option :math:`I_{swith} =2`
• /PROP/TYPE9 (SH_ORTH), and /PROP/TYPE10 (SH_COMP) - Added new *skew_ID* and :math:`I_{p}` flags
• /PROP/TYPE6 (SOL_ORTH), /PROP/TYPE11 (SH_SANDW), /PROP/TYPE16 (SH_FABR), /PROP/ TYPE51, and /STACK - Added new *IP* flag
• /SENSOR/ENERGY - Added new feature to activate the sensor with the total energy and new feature to activate the sensor when the internal and kinetic energy is constant for a defined time value.
• /TH/BRIC - Added new outputs for 3D solid element to display material velocity, speed of sound & Mach number in the time history file
• /TH/QUAD - Aded new outputs for 2D solid element to display material velocity, speed of sound & Mach number in the time history file
• /VISC/PRONY - Added new viscous model defined by time relaxation curve or Dynamic Mechanical Analysis (DMA). Radioss automatically fits the viscous parameters (prony series values).
New Engine Keywords
..
• /ALE/MUSCL/OFF - Disable MUSCL scheme
• /ANIM/VECT/PCONT2 and /ANIM/NODA/PCONT2 - Added new output option to display contact pressure for tied contact
• /H3D/RBE2/SINGLE_PART - Display all RBE2 in a single part
• /H3D/RBE3/SINGLE_PART - Display all RBE3 in a single part
• /H3D/RBODY/SINGLE_PART - Display all rigid bodies in a single part
• /H3D/SHELL/MDS/\* and /H3D/SOLID/MDS/\* - Added new ``.h3d`` output for the MDS material law
• /H3D/SHELL/PEXT and /H3D/SOLID/PEXT - Added new output to display the pressure imposed by the options ``/PLOAD``, ``/LOAD/PFLUID``, ``/LOAD/PBLAST`` and ``/BEM/DAA``
• /H3D/RBE2/SINGLE_PART - Added new option in the native H3D output to display only 1 component for all RBE2s
• /H3D/RBE3/SINGLE_PART - Added new option in the native H3D output to display only 1 component for all RBE3s
• /H3D/RBODY/SINGLE_PART - Added new option in the native H3D output to display only 1 component for all RBODYs
• /INIV/AXIS/Keyword3/2 - Initialize rotational velocity about an axis and translational velocity on a node set
• /INIV/ROT/Keyword3/2 - Initialize rotational velocity in the specified direction X, Y or Z on a node set
• /INIV/TRA/Keyword3/2 - Initialize translational velocity in the specified direction X, Y or Z on a node set
• /STATE/BRICK/EREF - Added new option to output reference state for solid element with total or small strain formulation
Modified Engine Keywords
..
• /IMPL/QSTAT/MRIGM - Added new option to set 3 reference nodes for the rigid body mode computation.
• /INIV/AXIS/Keyword3/2, /INIV/ROT/Keyword3/2, /INIV/TRA/Keyword3/2 - Added new option to define initial velocity on a node set defined in the model.
• /STOP/LSENSOR - Added new flag to output state file with LS-DYNA format (``.dynain``).
New LS-DYNA Keywords
..
• \*CONTACT_NODES_TO_SURFACE - Define nodes to surface contact interface.
• \*DEFINE_TRANSFORMATION - Defines a node and entities transformation(s) used in ``\*INCLUDE_TRANSFORM``
• \*LOAD_GRAVITY_PART - Defines gravity load applied to a part or to a set of parts
• \*LOAD_SHELL - Defines pressure load on a single shell element or on a set of shell elements
• \*SET_BEAM_INTERSECT, \*SET_DISCRETE_INTERSECT, \*SET_NODE_INTERSECT,
\*SET_SEGMENT_INTERSECT, \*SET_SHELL_INTERSECT, \*SET_SOLID_INTERSECT - Defines a set from the intersection of set lists of elements.
Modified LS-DYNA Keywords
..
• \*CONSTRAINED_NODAL_RIGID_BODY - Added available to set *NSID*\ =0
• \*CONTACT_AUTOMATIC_GENERAL, \*CONTACT_AUTOMATIC_NODES_TO_SURFACE, \*CONTACT_AUTOMATIC_SINGLE_SURFACE, \*CONTACT_AUTOMATIC_SURFACE_TO_SURFACE, and \*CONTACT_ERODING_SINGLE_SURFACE - Added parameter SOFT of the additional card A is read
• \*DATABASE_BINARY_INTFOR - Option FILE is accounted for
• \*INITIAL_VELOCITY - Exempted nodes are accounted for
• \*SET_BEAM, \*SET_DISCRETE, \*SET_NODE, \*SET_PART, \*SET_SEGMENT, \*SET_SHELL, and \*SET_SOLID - Added option COLLECT.
• \*SET_SEGMENT - Added GENERAL
Obsolete Keywords
• /SPMD
**Starter Input**
---------
This manual provides a list of all the model definition keywords and
options available in Radioss.
| The Radioss Block Format is executed in two steps:
| **1.** The Starter
| **2.** The Engine
| The Starter reads a ``Runname_0000.rad`` file that contains the model
definition. The Starter diagnosis possible errors in the models and
outputs a binary restart file.
The Engine executes the actual computation. It expects the binary
file produced by the Starter plus a ``Runname_run#.rad`` input file in
Radioss. The Engine Input describes the case control. The Engine
produces output files for animation, plotting (time history), and
restart.
Below is an alphabetical list of Block data entries.
..
| #enddata
| #include
| #RADIOSS STARTER
| /ACCEL
| /ACTIV
| /ADMAS
| /ADMESH/GLOBAL
| /ADMESH/SET
| /ADMESH/STATE/SHELL
| /ADMESH/STATE/SH3N
| /ALE/BCS
| /ALE/CLOSE
| /ALE/GRID/DISP
| /ALE/GRID/DONEA
| /ALE/GRID/LAPLACIAN
| /ALE/GRID/SPRING
| /ALE/GRID/STANDARD
| /ALE/GRID/VOLUME
| /ALE/GRID/ZERO
| /ALE/LINK/VEL
| /ALE/MAT
| /ALE/MUSCL
| /ALE/SOLVER/FINT
| /AMS
| /ANALY
| /ANIM/VERS
| /BCS
| /BCS/CYCLIC
| /BCS/LAGMUL
| /BEAM
| /BEGIN
| /BEM/DAA
| /BEM/FLOW
| /BOX
| /BOX/BOX
| /BRICK
| /BRIC20
| /CHECK/RFILE/OFF
| /CLOAD
| /CLUSTER
| /CNODE
| /CONVEC
| /CYL_JOINT
| /DAMP
| /DAMP/INTER
| /DEF_SHELL
| /DEF_SOLID
| /DEFAULT/INTER/TYPE2
| /DEFAULT/INTER/TYPE7
| /DEFAULT/INTER/TYPE11
| /DEFAULT/INTER/TYPE19
| /DEFAULT/INTER/TYPE24
| /DEFAULT/INTER/TYPE25
| /DFS/DETCORD
| /DFS/DETLINE
| /DFS/DETLINE/NODE
| /DFS/DETPLAN
| /DFS/DETPLAN/NODE
| /DFS/DETPOINT
| /DFS/DETPOINT/NODE
| /DFS/LASER
| /DFS/WAV_SHA
| /DRAPE
| /EBCS
| /EBCS/FLUXOUT
| /EBCS/INLET
| /EBCS/MONVOL
| /EBCS/NRF
| /EIG
| /ENCRYPT
| /END
| /EOS/COMPACTION
| /EOS/GRUNEISEN
| /EOS/IDEAL-GAS or /EOS/IDEAL-GAS-VE
| /EOS/IDEAL-GAS-VT
| /EOS/LINEAR
| /EOS/LSZK
| /EOS/MURNAGHAN
| /EOS/NASG
| /EOS/NOBLE-ABEL
| /EOS/OSBORNE
| /EOS/POLYNOMIAL
| /EOS/PUFF
| /EOS/SESAME
| /EOS/STIFF-GAS
| /EOS/TILLOTSON
| /EREF
| /EULER/MAT
| /FAIL
| /FAIL/ALTER
| /FAIL/BIQUAD
| /FAIL/CHANG
| /FAIL/COCKCROFT
| /FAIL/CONNECT
| /FAIL/EMC
| /FAIL/ENERGY
| /FAIL/FABRIC
| /FAIL/FLD
| /FAIL/GURSON
| /FAIL/HASHIN
| /FAIL/HC_DSSE
| /FAIL/JOHNSON
| /FAIL/LAD_DAMA
| /FAIL/MULLINS_OR
| /FAIL/NXT
| /FAIL/ORTHBIQUAD
| /FAIL/ORTHSTRAIN
| /FAIL/PUCK
| /FAIL/SNCONNECT
| /FAIL/SPALLING
| /FAIL/TAB1
| /FAIL/TBUTCHER
| /FAIL/TENSSTRAIN
| /FAIL/USERi
| /FAIL/VISUAL
| /FAIL/WIERZBICKI
| /FAIL/WILKINS
| /FRAME/FIX
| /FRAME/MOV
| /FRAME/MOV2
| /FRAME/NOD
| /FRIC_ORIENT
| /FRICTION
| /FUNC_2D
| /FUNCT
| /FUNCT_SMOOTH
| /FXBODY
| /GAUGE
| /GAUGE/SPH
| /GJOINT
| /GRAV
| /GRBEAM
| /GRBRIC
| /GRNOD
| /GRPART
| /GRQUAD
| /GRSH3N
| /GRSHEL
| /GRSPRI
| /GRTRIA
| /GRTRUS
| /HEAT/MAT
| /IMPACC
| /IMPDISP
| /IMPDISP/FGEO
| /IMPFLUX
| /IMPLICIT
| /IMPTEMP
| /IMPVEL
| /IMPVEL/FGEO
| /IMPVEL/LAGMUL
| /INIBEAM/AUX
| /INIBEAM/FULL
| /INIBRI
| /INICRACK
| /INIGRAV
| /INIMAP1D
| /INIMAP1D/FILE
| /INIMAP2D
| /INIMAP2D/FILE
| /INIQUA
| /INIQUA/DENS
| /INIQUA/ENER
| /INIQUA/EPSP
| /INIQUA/STRESS
| /INISHE/AUX
| /INISH3/AUX
| /INISHE/EPSP
| /INISH3/EPSP
| /INISHE/EPSP_F
| /INISH3/EPSP_F
| /INISHE/FAIL
| /INISHE/ORTH_LOC
| /INISH3/ORTH_LOC
| /INISHE/ORTHO
| /INISH3/ORTHO
| /INISHE/SCALE_YLD
| /INISH3/SCALE_YLD
| /INISPRI/FULL
| /INISHE/STRA_F
| /INISH3/STRA_F
| /INISHE_STRA_F/GLOB
| /INISH3_STRA_F/GLOB
| /INISHE/STRS_F
| /INISH3/STRS_F
| /INISHE/STRS_F/GLOB
| /INISH3/STRS_F/GLOB
| /INISHE/THICK
| /INISH3/THICK
| /INISPRI/FULL
| /INISTA
| /INITEMP
| /INITRUSS/FULL
| /INIVEL
| /INIVEL/AXIS
| /INIVEL/FVM
| /INIVEL/NODE
| /INIVOL
| /INTER/HERTZ/TYPE17
| /INTER/LAGDT/TYPE7
| /INTER/LAGMUL/TYPE2
| /INTER/LAGMUL/TYPE7
| /INTER/LAGMUL/TYPE16
| /INTER/LAGMUL/TYPE17
| /INTER/SUB
| /INTER/TYPE1
| /INTER/TYPE2
| /INTER/TYPE3
| /INTER/TYPE5
| /INTER/TYPE6
| /INTER/TYPE7
| /INTER/TYPE8
| /INTER/TYPE9
| /INTER/TYPE10
| /INTER/TYPE11
| /INTER/TYPE12
| /INTER/TYPE14
| /INTER/TYPE15
| /INTER/TYPE18
| /INTER/TYPE19
| /INTER/TYPE21
| /INTER/TYPE22
| /INTER/TYPE23
| /INTER/TYPE24
| /INTER/TYPE25
| /IOFLAG
| /KEY
| /LAGMUL
| /LEAK/MAT
| /LINE
| /LOAD/CENTRI
| /LOAD/PBLAST
| /LOAD/PFLUID
| /MADYMO/EXFEM
| /MAT/B-K-EPS
| /MAT/GAS
| /MAT/LAW0 (VOID)
| /MAT/LAW1 (ELAST)
| /MAT/LAW2 (PLAS_JOHNS)
| /MAT/PLAS_ZERIL
| /MAT/LAW3 (HYDPLA)
| /MAT/LAW4 (HYD_JCOOK)
| /MAT/LAW5 (JWL)
| /MAT/LAW6 (HYDRO or HYD_VISC)
| /MAT/K-EPS
| /MAT/LAW10 (DPRAG1)
| /MAT/LAW11 (BOUND)
| /MAT/LAW12 (3D_COMP)
| /MAT/LAW14 (COMPSO)
| /MAT/LAW15 (CHANG)
| /MAT/LAW16 (GRAY)
| /MAT/LAW18 (THERM)
| /MAT/LAW19 (FABRI)
| /MAT/LAW20 (BIMAT)
| /MAT/LAW21 (DPRAG)
| /MAT/LAW22 (DAMA)
| /MAT/LAW23 (PLAS_DAMA)
| /MAT/LAW24 (CONC)
| /MAT/LAW25 (COMPSH)
| /MAT/LAW26 (SESAM)
| /MAT/LAW27 (PLAS_BRIT)
| /MAT/LAW28 (HONEYCOMB)
| /MAT/LAW32 (HILL)
| /MAT/LAW33 (FOAM_PLAS)
| /MAT/LAW34 (BOLTZMAN)
| /MAT/LAW35 (FOAM_VISC)
| /MAT/LAW36 (PLAS_TAB)
| /MAT/LAW37 (BIPHAS)
| /MAT/LAW38 (VISC_TAB)
| /MAT/LAW40 (KELVINMAX)
| /MAT/LAW41 (LEE_TARVER)
| /MAT/LAW42 (OGDEN)
| /MAT/LAW43 (HILL_TAB)
| /MAT/LAW44 (COWPER)
| /MAT/LAW46 (LES_FLUID)
| /MAT/LAW48 (ZHAO)
| /MAT/LAW49 (STEINB)
| /MAT/LAW50 (VISC_HONEY)
| /MAT/LAW51 (MULTIMAT)
| /MAT/LAW52 (GURSON)
| /MAT/LAW53 (TSAI_TAB)
| /MAT/LAW54 (PREDIT)
| /MAT/LAW57 (BARLAT3)
| /MAT/LAW58 (FABR_A)
| /MAT/LAW59 (CONNECT)
| /MAT/LAW60 (PLAS_T3)
| /MAT/LAW62 (VISC_HYP)
| /MAT/LAW63 (HANSEL)
| /MAT/LAW64 (UGINE_ALZ)
| /MAT/LAW65 (ELASTOMER)
| /MAT/LAW66
| /MAT/LAW68 (COSSER)
| /MAT/LAW69
| /MAT/LAW70 (FOAM_TAB)
| /MAT/LAW71
| /MAT/LAW72 (HILL_MMC)
| /MAT/LAW73
| /MAT/LAW74
| /MAT/LAW75 (POROUS)
| /MAT/LAW76 (SAMP)
| /MAT/LAW77
| /MAT/LAW78
| /MAT/LAW79 (JOHN_HOLM)
| /MAT/LAW80
| /MAT/LAW81
| /MAT/LAW82
| /MAT/LAW83
| /MAT/LAW84
| /MAT/LAW87 (BARLAT2000)
| /MAT/LAW88
| /MAT/LAW90
| /MAT/LAW92
| /MAT/LAW93 (ORTH_HILL) or (CONVERSE)
| /MAT/LAW94 (YEOH)
| /MAT/LAW95 (BERGSTROM_BOYCE)
| /MAT/LAW97 (JWLB)
| /MAT/LAW100 (MNF)
| /MAT/LAW101
| /MAT/LAW102 (DPRAG2)
| /MAT/LAW103 (HENSEL-SPITTEL)
| /MAT/LAW104 (JOHNS_VOCE_DRUCKER)
| /MAT/LAW106 (JCOOK_ALM)
| /MAT/LAW108 (SPR_GENE)
| /MAT/LAW109
| /MAT/LAW110 (VEGTER)
| /MAT/LAW111
| /MAT/LAW112 (PAPER or XIA)
| /MAT/LAW113 (SPR_BEAM)
| /MAT/LAW114 (SPR_SEATBELT)
| /MAT/LAW115 (DESHFLECK)
| /MAT/LAW116
| /MAT/LAW117
| /MAT/LAW151 (MULTIFLUID)
| /MAT/LAW200 (MDS)
| /MAT/PLAS_PREDEF
| /MAT/USERij
| /MERGE/RBODY
| /MONVOL/AIRBAG1
| /MONVOL/AREA
| /MONVOL/COMMU1
| /MONVOL/FVMBAG1
| /MONVOL/FVMBAG2
| /MONVOL/GAS
| /MONVOL/LFLUID
| /MONVOL/PRES
| /MOVE_FUNCT
| /MPC
| /NBCS
| /NODE
| /PARAMETER
| /PART
| /PENTA6
| /PERTURB
| /PERTURB/FAIL/BIQUAD
| /PERTURB/PART/SHELL
| /PERTURB/PART/SOLID
| /PLOAD
| /PLY
| /PRELOAD
| /PROP/INJECT1
| /PROP/INJECT2
| /PROP/PCOMPP
| /PROP/TYPE0 (VOID)
| /PROP/TYPE1 (SHELL)
| /PROP/TYPE2 (TRUSS)
| /PROP/TYPE3 (BEAM)
| /PROP/TYPE4 (SPRING)
| /PROP/TYPE6 (SOL_ORTH)
| /PROP/TYPE8 (SPR_GENE)
| /PROP/TYPE9 (SH_ORTH)
| /PROP/TYPE10 (SH_COMP)
| /PROP/TYPE11 (SH_SANDW)
| /PROP/TYPE12 (SPR_PUL)
| /PROP/TYPE13 (SPR_BEAM)
| /PROP/TYPE14 (SOLID)
| /PROP/TYPE14 (FLUID)
| /PROP/TYPE15 (POROUS)
| /PROP/TYPE16 (SH_FABR)
| /PROP/TYPE17 (STACK)
| /PROP/TYPE18 (INT_BEAM)
| /PROP/TYPE19 (PLY)
| /PROP/TYPE20 (TSHELL)
| /PROP/TYPE21 (TSH_ORTH)
| /PROP/TYPE22 (TSH_COMP)
| /PROP/TYPE23 (SPR_MAT)
| /PROP/TYPE25 (SPR_AXI)
| /PROP/TYPE26 (SPR_TAB)
| /PROP/TYPE27 (SPR_BDAMP)
| /PROP/TYPE28 (NSTRAND)
| /PROP/TYPE29, /PROP/TYPE30 or /PROP/TYPE31
| /PROP/TYPE32 (SPR_PRE)
| /PROP/TYPE33 (KJOINT)
| /PROP/TYPE34 (SPH)
| /PROP/TYPE35 (STITCH)
| /PROP/TYPE36 (PREDIT)
| /PROP/TYPE43 (CONNECT)
| /PROP/TYPE44 (SPR_CRUS)
| /PROP/TYPE45 (KJOINT2)
| /PROP/TYPE46 (SPR_MUSCLE)
| /PROP/TYPE51
| /QUAD
| /RADIATION
| /RANDOM
| /RBE2
| /RBE3
| /RBODY
| /RBODY/LAGMUL
| /REFSTA
| /RETRACTOR/SPRING
| /RLINK
| /RWALL
| /RWALL/LAGMUL
| /RWALL/THERM
| /SECT
| /SECT/CIRCLE
| /SECT/PARAL
| /SENSOR
| /SENSOR/ACCE
| /SENSOR/AND_OR
| /SENSOR/DIST
| /SENSOR/DIST_SURF
| /SENSOR/ENERGY
| /SENSOR/GAUGE
| /SENSOR/HIC
| /SENSOR/INTER
| /SENSOR/NOT
| /SENSOR/RBODY
| /SENSOR/RWALL
| /SENSOR/SECT
| /SENSOR/SENS
| /SENSOR/TIME
| /SENSOR/WORK
| /SET
| /SH3N
| /SHELL
| /SHEL16
| /SKEW/FIX
| /SKEW/MOV
| /SKEW/MOV2
| /SLIPRING/SPRING
| /SPH/INOUT
| /SPH/RESERVE
| /SPHBCS
| /SPHCEL
| /SPHGLO
| /SPRING
| /STACK
| /STAMPING
| /STATE/STR_FILE
| //SUBMODEL
| /SUBSET
| /SURF
| /SURF/BOX
| /SURF/DSURF
| /SURF/ELLIPS
| /SURF/GRBRIC/EXT
| /SURF/GRBRIC/FREE
| /SURF/GRSH3N
| /SURF/GRSHEL
| /SURF/MAT
| /SURF/PART
| /SURF/PLANE
| /SURF/PROP
| /SURF/SEG
| /SURF/SUBMODEL
| /SURF/SUBSET
| /SURF/SURF
| /TABLE/0
| /TABLE/1
| /TETRA4
| /TETRA10
| /TH
| /TH/ACCEL
| /TH/BEAM
| /TH/BRIC
| /TH/CLUSTER
| /TH/CYL_JO
| /TH/FRAME
| /TH/FXBODY
| /TH/GAUGE
| /TH/INTER
| /TH/MODE
| /TH/MONVOL
| /TH/NODE
| /TH/NSTRAND
| /TH/PART
| /TH/QUAD
| /TH/RBODY
| /TH/RETRACTOR
| /TH/RWALL
| /TH/SECTIO
| /TH/SH3N
| /TH/SHEL
| /TH/SLIPRING
| /TH/SPH_FLOW
| /TH/SPHCEL
| /TH/SPRING
| /TH/SUBS
| /TH/SURF
| /TH/TRIA
| /TH/TRUSS
| /THERM_STRESS/MAT
| /THPART
| /THPART/GRBEAM
| /THPART/GRBRIC
| /THPART/GRQUAD
| /THPART/GRSH3N
| /THPART/GRSHEL
| /THPART/GRSPRI
| /THPART/GRTRUS
| /TITLE
| /TRANSFORM
| /TRANSFORM/MATRIX
| /TRANSFORM/POSITION
| /TRANSFORM/ROT
| /TRANSFORM/SCA
| /TRANSFORM/SYM
| /TRANSFORM/TRA
| /TRIA
| /TRUSS
| /UNIT
| /UPWIND
| /VISC/PRONY
| /XELEM
| /XREF
| **See Also**
| Material Compatibility
| Starter Keywords Syntax
**2D and 3D Analysis Options**
-----------------------
+-----------------------+-----------------------+-----------------------+
| | **2D** | **3D** |
+=======================+=======================+=======================+
| Quad | # | |
+-----------------------+-----------------------+-----------------------+
| Solid | | # |
+-----------------------+-----------------------+-----------------------+
| Shell 4 Node | | # |
+-----------------------+-----------------------+-----------------------+
| Shell 3 Node | | # |
+-----------------------+-----------------------+-----------------------+
| Truss | | # |
+-----------------------+-----------------------+-----------------------+
| Beam | | # |
+-----------------------+-----------------------+-----------------------+
| Spring | | # |
+-----------------------+-----------------------+-----------------------+
| Concentrated load | # | # |
+-----------------------+-----------------------+-----------------------+
| Pressure load | # | # |
+-----------------------+-----------------------+-----------------------+
| Initial velocity | # | # |
+-----------------------+-----------------------+-----------------------+
| Fixed velocity | # | # |
+-----------------------+-----------------------+-----------------------+
| Gravity | # | # |
+-----------------------+-----------------------+-----------------------+
| Interface | Type 1, 2, 3, and 5 | all |
+-----------------------+-----------------------+-----------------------+
| Rigid wall | Type 1 | all |
+-----------------------+-----------------------+-----------------------+
| Rigid body | | # |
+-----------------------+-----------------------+-----------------------+
| Added mass | | # |
+-----------------------+-----------------------+-----------------------+
| Section | | # |
+-----------------------+-----------------------+-----------------------+
| Cylindrical joint | | # |
+-----------------------+-----------------------+-----------------------+
| Monitored Volumes | | # |
+-----------------------+-----------------------+-----------------------+
| Property | Type 14 | |
+-----------------------+-----------------------+-----------------------+
| ``/DFS/DTPLAN, | # | |
| /DFS/DETPOIN, | | |
| /DFS/DETLINE, | | |
| /DFS/LASER, | | |
| /DFS/WAV_SHA`` | | |
+-----------------------+-----------------------+-----------------------+
| ``/UPWM`` | # | |
+-----------------------+-----------------------+-----------------------+
| ``/UPWIND`` | # | |
+-----------------------+-----------------------+-----------------------+
| ``/ALE/BCS`` | # | |
+-----------------------+-----------------------+-----------------------+
| ``/ALE/GRID/DISP, | # | |
| /ALE/GRID/DONEA, | | |
| /ALE/GRID/SPRING, | | |
| /ALE/GRID/STANDARD, | | |
| /ALE/GRID/ZERO`` | | |
+-----------------------+-----------------------+-----------------------+
| ``/ALE/CLOSE`` | # | |
+-----------------------+-----------------------+-----------------------+
| ``/ALE/MAT`` | # | |
+-----------------------+-----------------------+-----------------------+
| ``/ALE/LINK/VEL`` | # | |
+-----------------------+-----------------------+-----------------------+
| ``/AMS`` | # | |
+-----------------------+-----------------------+-----------------------+
| ``/EULER/MAT`` | # | |
+-----------------------+-----------------------+-----------------------+
| # : yes
| blank : no
**Starter Keywords Syntax**
-----------------------
| **Block Format Keyword**
| This section describes the general syntax rules for writing a
Radioss Block Format input deck, including the Block Format syntax,
required keywords, keyword examples, fixed format input, and
default values. These rules apply to all the options, which are
individually defined in this manual.
**Block Format Syntax**
^^^^^^^^^^^^^^^^^^^^
| Each block begins with a forward slash (/), followed by a keyword and ends at the beginning of the next block.
| As of Radioss V4, the blocks can be entered in any order except
for:
| • ``/BEGIN`` - This must be the first keyword entered, see next section
for more details.
• ``/TRANSFORM`` - When multiple transformations are used, the
transformation is applied in the order of the input.
• ``/END`` - This is the last keyword read. Any input entered after will
be ignored.
Each block defines one option, a set of flags or switches, or a set
of nodes or elements.
The input deck finishes with the ``/END`` keyword.
The content of each block is entered in fixed format (see below).
Blank lines at the end of each block are ignored.
Lines with a # or $ in the first column are comment lines except for
these 3 special options that begin with a #: #RADIOSS STARTER,
#enddata, and #include.
| **Required Keywords**
| The first line of the input deck must be the header line with which
starts with #RADIOSS STARTER followed by the /BEGIN keyword as
shown here. Any number of comment lines that start with # or $ can
be inserted between these two commands. The last keyword in a file
should be /END.
::
#RADIOSS STARTER
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----\|
#New drop test model
/BEGIN
Drop
2017 0
g mm ms
g mm ms
...
...
/END
..
| **General Keyword Formats**
| There are 3 general keyword formats
| General Flags, Switches, Global Parameters or Title
| Syntax::
/KEYWORD
flag1 flag2 flag3 ...
..
Example: Global Parameters
*Table 1:* ``/IOFLAG``
+-------+-------+-------+-------+-------+-------+-------+-------+-------+---------+
|**(1)**|**(2)**|**(3)**|**(4)**|**(5)**|**(6)**|**(7)**|**(8)**|**(9)**|**(10)** |
+=======+=======+=======+=======+=======+=======+=======+=======+=======+=========+
|*Ipri* |*Irtyp*| |*Ioutp*|*Outyy |Irootyy| | | |*Irtyp_r*|
| | | | |fmt* | | | | | |
+-------+-------+-------+-------+-------+-------+-------+-------+-------+---------+
..
| Keyword Definition with Numeric Option Identifier
| Syntax::
/OPTION_KEYWORD[/SUBKEYWORD/…]/option_ID[/unit_ID]
option_title
option input ...
..
The *option_ID* is defined and the *option_title* is associated to
this *option_ID* in the first line. If the same option is used
several times, a different *option_ID* and a different *option_title*
have to be used each time.
The *option_title* can have a maximum of 100 characters and must not
start with a forward slash ( / ).
Example: Keyword with *option_ID*
| ``/IMPVEL``/*impvel_ID*/*unit_ID*
| *impvel_title*
+--------+---------+---------+---------+---------+----------+--------+--------+--------+---------+
|**(1)** |**(2)** |**(3)** |**(4)** |**(5)** |**(6)** |**(7)** |**(8)** |**(9)** |**(10)** |
+========+=========+=========+=========+=========+==========+========+========+========+=========+
|*fct_ID*|*Dir* |*Skew_ID*|*sens_ID*|*grnd_ID*|*frame_ID*| | | | |
+--------+---------+---------+---------+---------+----------+--------+--------+--------+---------+
|:math:`Fscale_{x}`| :math:`Fscale_{y}`| :math:`T_{start}` | :math:`T_{stop}`| |
+--------+---------+---------+---------+---------+----------+--------+--------+--------+---------+
..
| Keyword Option without Numeric Option Identifier
| Syntax::
/OPTION_KEYWORD[/SUBKEYWORD/…]/reference_ID[/unit_ID]
…
option input
…
..
Example 1: Keyword without Option
*Table 2:* ``/NODE/unit_ID``
+---------+--------+---------+---------+---------+----------+--------+--------+--------+---------+
|**(1)** |**(2)** |**(3)** |**(4)** |**(5)** |**(6)** |**(7)** |**(8)** |**(9)** |**(10)** |
+=========+========+=========+=========+=========+==========+========+========+========+=========+
|*node_ID*| :math:`X_{c}` | :math:`Y_{v}` | :math:`Z_{c}` | | | |
+---------+--------+---------+---------+---------+----------+--------+--------+--------+---------+
..
| The nodes can be defined in one or more blocks.
| Example 2: Keyword without Option
*Table 3:* ``/SHELL/part_ID``
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** |**(7)** |**(8)** |**(9)** |**(10)** |
+=================+==========+==========+==========+==========+==========+========+========+========+=========+
|:math:`I_{shell}`|*node_ID1*|*node_ID2*|*node_ID3*|*node_ID4*| | | | *Thick* |
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
..
In the above syntax, the *part_ID* is only used for element
definition; but it is not defined in this block. The *part_ID*'s are
defined in /PART option.
The list of elements belonging to one part can be defined in one or
more blocks.
| Example 3: Keyword without Option
| ``/FAIL``/*Key*/*mat_ID*/*unit_ID*
| Submodel option
::
//SUBMODEL/submodel_ID/unit_ID
submodel_title
…
option input
…
//ENDSUB
**Block Keyword Input Fixed Format**
------------------
The content of any block is formatted in lines of 100 characters,
divided into 10 fields of 10 characters.
A typical input line is described in this manual as:
+---------+--------+---------+---------+---------+----------+--------+--------+--------+---------+
|**(1)** |**(2)** |**(3)** |**(4)** |**(5)** |**(6)** |**(7)** |**(8)** |**(9)** |**(10)** |
+=========+========+=========+=========+=========+==========+========+========+========+=========+
| | | | | | | | | | |
+---------+--------+---------+---------+---------+----------+--------+--------+--------+---------+
..
The first row of the table gives the fields number. The second row
shows the variables description.
Only the field with defined input should be used. All other fields
and blank formats are reserved and must not be used. Users should not
put comments in the fields that are not used, but instead should use
comment lines that begin with a “#” or “$”.
**Default Values**
Any input field that is blank or a zero entered will use the default
value listed in the manual. For example, when using an imposed
displacement it is possible to scale the x and y values of the input
curve. The default values are *Scale_x*\ =1 and *Scale_y*\ =1. In
this example, *Scale_x*\ =0 and *Scale_y* = blank means that the
default value of *Scale_x*\ =1 and *Scale_y*\ =1 is used by the
solver.
::
/IMPDISP/7
compression
# Ifunct DIR Iskew Isensor Gnod_id Frame
4 X 1150
# Scale_x Scale_y Tstart Tstop 0
..
The actual values used by the solver are written to the Starter
output file, ``Runname_0000.out.`` For real number fields with default
values that are not zero, it is not possible to define the field as
zero since this would cause the default value to be used. Therefore,
if a zero numerical value is needed a very small number, that is
1e-30, can be used as a zero-value entry.
**Field Entry Input**
• All integers are given in one 10 digit field with a maximum of 9 digits.
• All reals are entered in two fields with a maximum of 20 digits.
• Characters can have variable length, the maximum length is given for each entry.
• For boundary conditions, single-digit booleans (value 0 or 1) are used. The format is in this case, given by showing the place of each boolean in the field (see table below).
For example, on the line below the first field is defined as an
integer, followed by six booleans, and then one real. The last six
fields are unused. The position of the six booleans is given in the
second table. A text is defined on a line (10 fields, 100 characters
maximum).
+---------+--------+---------+---------+---------+----------+--------+--------+--------+---------+
|**(1)** |**(2)** |**(3)** |**(4)** |**(5)** |**(6)** |**(7)** |**(8)** |**(9)** |**(10)** |
+=========+========+=========+=========+=========+==========+========+========+========+=========+
| Integer |Boolean | Real | | | | | | |
+---------+--------+---------+---------+---------+----------+--------+--------+--------+---------+
+---------+---------+---------+-------------+-------------+-------------+---------+------------------+------------------+------------------+
|**(2)-1**|**(2)-2**|**(2)-3**|**(2)-4** |**(2)-5** |**(2)-6** |**(2)-7**|**(2)-8** |**(2)-9** |**(2)-10** |
+=========+=========+=========+=============+=============+=============+=========+==================+==================+==================+
| | | |:math:`V_{x}`|:math:`V_{y}`|:math:`V_{z}`| |:math:`\omega_{x}`|:math:`\omega_{y}`|:math:`\omega_{z}`|
+---------+---------+---------+-------------+-------------+-------------+---------+------------------+------------------+------------------+
+---------+--------+---------+---------+---------+----------+--------+--------+--------+---------+
|**(1)** |**(2)** |**(3)** |**(4)** |**(5)** |**(6)** |**(7)** |**(8)** |**(9)** |**(10)** |
+=========+========+=========+=========+=========+==========+========+========+========+=========+
| Character |
+---------+--------+---------+---------+---------+----------+--------+--------+--------+---------+
Character
**Smooth Particle Hydrodynamics (SPH)**
-------------------
The Smooth Particles Hydrodynamics method formulation is used to
solve the equations of mechanics, when particles are free from a
meshing grid. It is specially adapted to simulate phenomena with a
very substantial deformation; for example, a range of application
where the Finite Element method, with ALE and Lagrangian formulation
loses its efficiency and accuracy.
The SPH method built in the Radioss code is compatible with most
functions.
For instance, it is possible to cause two objects to interact, one
discretized by finite elements and the other by particles.
The SPH formulation can be put in an ALE model, only if the boundary
between SPH and ALE is Lagrangian.
The SPH formulation is only available in 3D analysis.
**Computational Fluid Dynamics (CFD)**
----------------------
*CFD* (Computational Fluid Dynamics) code enables to predict steady
flows (drag and lift) and slow transient flows like heating and
defrosting.
*Aero-Acoustic* is the engineering field dealing with noise generated
generally by a turbulent fluid flow interacting with a vibrating
structure. This field differs from pure acoustic domain where the
object is the propagation of acoustic pressure waves, including
reflections, diffractions and absorptions, in a medium at rest.
A classification of Aero-Acoustic problems can be made using the
following three categories:
..
• External wind noise transmitted to the inside through a structure: In the automotive industry, a pillar, side mirror and windshield wipers noise are typical problems of this category.
• Internal flow noise transmitted to the outside through a structure: Examples of this class of problems are exhaust, HVAC and Intakes noises.
• Rotating machines noise: Axial and centrifugal fans are noisy components that bring with them many interesting Aero-acoustic problems.
The necessary ingredients to perform direct Aero-Acoustic numerical
simulation are implemented in a single numerical code and they are:
• Compressible Navier Stokes: Able to propagate pressure waves; and therefore take into account in a single simulation the flow and the noise including all possible cavity modes.
• Fluid structure coupling: Able to treat the problems involving a turbulent flow, one side of the structure and the noise radiation on the other side.
• Transient turbulence modeling: Unlike the Reynolds Averaged Navier Stokes (RANS) method that make the assumption that flow is a combination of a steady state and turbulent fluctuations. Aero-acoustic noise is directly linked to the small scale turbulent fluctuations and strongly time dependant.
• Acoustic boundaries with set impedance: This is a critical point of a good Aero-Acoustic simulation. Boundaries need to be able to perform tasks, such as giving a free field impedance to an inlet with fixed velocity, setting a specific impedance at the outlet of a duct to make sure long wavelength stay trapped inside, treat exterior air impedance effect on a vibrating structure and be used to model absorbing materials (carpet and foams) that are used to coat many components.
• Large Eddy Simulation Turbulence modeling: The noise induced by turbulent structures is taken into account properly. Unfortunately, the turbulent structures that are simultaneously active any given time range from the full size of the problem to the microscopic Kolmogorov size.
These ingredients are needed to perform Aero-Acoustic simulations
with no particular assumptions on the flow (excepted of course, the
use of a turbulence model), the fluid structures coupling or the
vibrations.
..
**General Controls**
---------------
**Block Format Keyword**
In this group, keywords are used to set default value, global
parameter, analysis type, input/output print, damping and ALE and
CFD treatment for the whole model. For default value, it is still
possible to overwrite in each specific keywords.
**Formats**
^^^^^^^^^^
**#enddata**
^^^^^^^^^^^^^
**Block Format Keyword**
In an include file, all lines after the instruction ``#enddata`` are ignored.
**Format**
``#enddata``
**#include**
**Block Format Keyword**
Points to an include file in the Starter Input (``Runname_0000.rad``) file.
**Format**
``#include`` *filename*
**Definitions**
+-----------------------+-------------------------+-----------------------+
| **Field** | **Contents** | **SI Unit Example** |
+=======================+=====================--==+=======================+
| *filename* | Filename and path | |
| | of the include | |
| | file in the | |
| | ``Runname_0000.rad`` | |
+-----------------------+-------------------------+-----------------------+
..
input deck.
(Character)
**Comments**
**1.** The include filename must not contain blank spaces.
**2.** The include file may contain one or more blocks.
**3.** The include file may not contain incomplete blocks.
**4.** The first line of the ``Runname_0000.rad`` may not be included in an external file.
**5.** In an include file, all lines after the instruction #enddata are ignored.
**6.** Include files may be in any directory, other than the main file.
**7.** When using sublevel include files, absolute paths for include option are recommended.
**8.** Relative paths are allowed; but refer to the working directory.
**9.** Include files must respect the Radioss version declared in the main file.
**10.** Radioss Starter will stop with an error message if an include file is not found.
**11.** The line including "``#include``" cannot be greater than 500 characters.
**12.** Any ``/BEGIN`` (units and input version information) defined in an ``#include`` is ignored; except when the include file is part of a ``//SUBMODEL``.
..
**#RADIOSS STARTER**
----------
| **Block Format Keyword**
| Mandatory header keyword for the Starter Input file (``Runname_0000.rad``). This MUST be the first keyword in a Radioss Starter Input.
**Comments**
**1.** After the header, comment lines may be inserted. Command lines must begin with $ or #.
**2.** The run identification name is input using the keyword /BEGIN.
..
**/BEGIN**
----------
| **Block Format Keyword**
| Sets the run name, the version of the input manual, the number of
Starter run and input and work unit systems.
**Description**
This option is required.
Work unit system and Input unit system are used instead of unit
system defined previously in: ``/UNIT/ name`` for input format prior to
v10.0.
**Format**
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** |**(7)** |**(8)** |**(9)** |**(10)** |
+=================+==========+==========+==========+==========+==========+========+========+========+=========+
| ``/BEGIN`` |
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
| *Runname* | | |
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
| *Invers* | | | | | | | | | |
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
| *Input_mass_unit* | *Input_length_unit* | *Input_time_unit* | | | | |
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
| *Work_mass_unit* | *Work_length_unit* | *Work_time_unit* | | | | |
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
**Definitions**
+-----------------------+-------------------------+-----------------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example* |
+=======================+=========================+=======================+
| *Runname* | Run identification name.| |
| | | |
| | (Character, maximum 80 | |
| | characters) | |
+-----------------------+-------------------------+-----------------------+
| *Invers* | Input version. 8 | |
| | | |
| | **= 2022** For current | |
| | release. | |
| | | |
| | (Integer) | |
+-----------------------+-------------------------+-----------------------+
| *Input_mass_unit* | Unit system of input | |
| | for mass. 7 | |
| | | |
| | Default = 1 kg | |
| | (Real or code) | |
+-----------------------+-------------------------+-----------------------+
| *Input_length_unit* | Unit system of input | |
| | for length. 7 | |
| | | |
| | Default = 1 m | |
| | (Real or code) | |
+-----------------------+-------------------------+-----------------------+
| *Input_time_unit* | Unit system of input | |
| | for time. 7 | |
| | | |
| | Default = 1 s | |
| | (Real or code) | |
+-----------------------+-------------------------+-----------------------+
| *Work_mass_unit* | Unit system used for the| |
| | calculation for mass. 7 | |
| | | |
| | Default = 1 kg | |
| | (Real or code) | |
+-----------------------+-------------------------+-----------------------+
| *Work_length_unit* | Unit system used for the| |
| | calculation for length. | |
| | 7 | |
| | | |
| | Default = 1 m | |
| | (Real or code) | |
+-----------------------+-------------------------+-----------------------+
| *Work_time_unit* | Unit system used for the| |
| | calculation for time. 7 | |
| | | |
| | Default = 1 s | |
| | (Real or code) | |
+-----------------------+-------------------------+-----------------------+
..
**Prefix and Associated Multiplying Factor**
**Prefix** **Multiplying Factor**
**y** 1.E-24
**z** 1.E-21
**a** 1.E-18
**f** 1.E-15
**p** 1.E-12
**n** 1.E-09
:math:`\mu` **or mu** 1.E-06
**m** 1.E-03
**c** 1.E-02
**d** 1.E-01
1
**da** 1.E+01
**h** 1.E+02
**k** 1.E+03
**M** 1.E+06
**G** 1.E+09
**T** 1.E+12
**P** 1.E+15
**E** 1.E+18
**Z** 1.E+21
**Y** 1.E+24
..
**Comments**
**1.** To be taken into account, this option must be written after the mandatory keyword # Radioss Starter.
**2.** The Runname is defined by the first non-blank character. It may have a maximum of 80 characters and a minimum of four characters. The characters "/" and "\\" are not allowed.
**3.** The Input unit system defines the unit of the input deck. The work unit system defines which unit has been used during the computation. If the Input unit system is not equal to work unit system, Radioss will convert the input unit system (in Starter file, not in Engine file) to work unit system automatically.
**4.** The Work unit system defines the unit in which the calculation is performed. The output is defined in the work unit system.
**5.** In submodels, Work unit system defined in ``</BEGIN>`` of a submodel is ignored: the Work unit system defined in the main ``</BEGIN>``s card is used.
**6.** If an Input unit system is not defined, Input unit system is equal to work unit system.
**7.** Codes defining units of length and time are given are (example, SI units: kg for mass, m for length, and s for time):
+-------------------------+-------------------------+-------------------------+
| **Code** **Value** | **Code** **Value** | **Code** **Value** |
| | | |
| **(Mass)** | **(Length)** | **(Time)** |
| | | |
| yg 1.E-27 | ym 1.E-24 | ys 1.E-24 |
| | | |
| zg 1.E-24 | zm 1.E-21 | zs 1.E-21 |
| | | |
| ag 1.E-21 | am 1.E-18 | as 1.E-18 |
| | | |
| fg 1.E-18 | fm 1.E-15 | fs 1.E-15 |
| | | |
| pg 1.E-15 | pm 1.E-12 | ps 1.E-12 |
| | | |
| ng 1.E-12 | nm 1.E-09 | ns 1.E-09 |
| | | |
| :math:`\mu g` or 1.E-09 | :math:`\mu m` or 1.E-06 | :math:`\mu s` or 1.E-06 |
| | | |
| mug | mum | mus |
| | | |
| mg 1.E-06 | mm 1.E-03 | ms 1.E-03 |
| | | |
| cg 1.E-05 | cm 1.E-02 | cs 1.E-02 |
| | | |
| dg 1.E-04 | dm 1.E-01 | ds 1.E-01 |
| | | |
| g 1.E-03 | m 1 | s 1 |
| | | |
| dag 1.E-02 | dam 1.E+01 | das 1.E+01 |
| | | |
| hg 1.E-01 | hm 1.E+02 | hs 1.E+02 |
| | | |
| kg 1 | km 1.E+03 | ks 1.E+03 |
| | | |
| Mg 1.E+03 | Mm 1.E+06 | Ms 1.E+06 |
| | | |
| Gg 1.E+06 | Gm 1.E+09 | Gs 1.E+09 |
| | | |
| Tg 1.E+09 | Tm 1.E+12 | Ts 1.E+12 |
| | | |
| Pg 1.E+12 | Pm 1.E+15 | Ps 1.E+15 |
| | | |
| Eg 1.E+15 | Em 1.E+18 | Es 1.E+18 |
| | | |
| Zg 1.E+18 | Zm 1.E+21 | Zs 1.E+21 |
| | | |
| Yg 1.E+21 | Ym 1.E+24 | Ys 1.E+24 |
+=========================+=========================+=========================+
+-------------------------+-------------------------+-------------------------+
..
Radioss does not have a built-in unit system, so it is very important
to keep unit consistency in your model.
As an alternative to the unit code, the equivalent value may be input
instead.
**8.** Available *Inverse* values:
**Invers** **Radioss Version**
**90** Used from 9.0
**100** Used from 10.0
**110** Used from 11.0
**120** Used from 12.0
**130** Used from 13.0
**140** Used from 14.0
**2017** Used from 2017
**2018** Used from 2018
**2019** Used from 2019
**2020** Used from 2020
**2021** Used from 2021
**2022** Used from 2022 (current format)
..
Any supported input format can be used with the latest Radioss
version. New features added in a given version are available only
with the *Invers* value of that Radioss version or higher. Input
formats previous to those listed in the table are no longer
supported. The model format should be updated using HyperWorks.
| **See Also**
| Unit Consistency (User Guide)
**/END**
----------
| **Block Format Keyword**
| This keyword has to be set at the end of the input deck.
**Format**
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** |**(7)** |**(8)** |**(9)** |**(10)** |
+=================+==========+==========+==========+==========+==========+========+========+========+=========+
| ``</END>`` |
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
..
**Comments**
**1.** All lines or blocks located after ``</END>`` are ignored.
**/PRIVATE/METADATA/FATXML**
--------------
| **Block Format Keyword**
| Reads FATXML format.
| **Format**
| Any number of lines for *FATXML_data* may be input (100 characters per line)
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** |**(7)** |**(8)** |**(9)** |**(10)** |
+=================+==========+==========+==========+==========+==========+========+========+========+=========+
| ``</PRIVATE/METADATA/FATXML>`` |
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
| *FATXML_data* |
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
..
**Definitions**
+-----------------------+-----------------------+-----------------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+=======================+=======================+
| *FATXML_data* | FATXML format data | |
| | | |
| | (Character, maximum | |
| | 100 characters) | |
+-----------------------+-----------------------+-----------------------+
..
| **Comments**
| **1.** Radioss only reads data (ignores what is inside).
| **2.** Forward slash ( / ) characters are forbidden.
| **/TITLE**
| **Block Format Keyword**
| Describes the title.
**Format**
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** |**(7)** |**(8)** |**(9)** |**(10)** |
+=================+==========+==========+==========+==========+==========+========+========+========+=========+
| ``</TITLE>`` |
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
| *Title* |
+-----------------+----------+----------+----------+----------+----------+--------+--------+--------+---------+
..
**Definitions**
+-----------------------+-----------------------+-----------------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+=======================+=======================+
| *Title* | Title to appear on | |
| | plots | |
| | | |
| | (Character, maximum | |
| | 100 characters) | |
+-----------------------+-----------------------+-----------------------+
..
| **Comments**
| **1.** The title must not start with forward slash ( / ).
**Default Value**
**/DEF_SHELL**
| **Block Format Keyword**
| This keyword is used to set default values for certain parameters
in all shell properties, but options could still be changed in each
property set input and in this case, the latter will prevail.
**Format**
+------------------+------------------+------------------+------------------+----------+----------+--------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** |**(7)** | **(8)** | **(9)** |**(10)** |
+==================+==================+==================+==================+==========+==========+========+==================+==================+=========+
| ``</DEF_SHELL>`` |
+------------------+------------------+------------------+------------------+----------+----------+--------+------------------+------------------+---------+
| :math:`I_{shell}`| :math:`I_{smstr}`| :math:`I_{thick}`| :math:`I_{plas}` | | | | :math:`I_{sh3n}` | :math:`I_{dril}` | |
+------------------+------------------+------------------+------------------+----------+----------+--------+------------------+------------------+---------+
..
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| :math:`I_{shell}` | Shell element | |
| | formulation flag. | |
| | | |
| | *=0* | |
| | | |
| | Set to 1 or 24. | |
| | | |
| | *=1 Default,* if | |
| | ``</IMPLICIT>`` *is not | |
| | used in deck.* | |
| | | |
| | Q4, visco-elastic hourglass | |
| | modes orthogonal to | |
| | | |
| | deformation and rigid modes | |
| | (Belytschko). | |
| | | |
| | *=2* | |
| | | |
| | Q4, visco-elastic hourglass | |
| | without orthogonality | |
| | (Hallquist). | |
| | | |
| | *=3* | |
| | | |
| | Q4, elasto-plastic hourglass | |
| | with orthogonality. | |
| | | |
| | *=4* | |
| | | |
| | Q4 with improved type 1 | |
| | formulation | |
| | | |
| | (orthogonalization for | |
| | warped elements). | |
| | | |
| | *=12* | |
| | | |
| | QBAT shell formulation. | |
| | | |
| | *=24 Default, if* | |
| | ``</IMPLICIT>`` | |
| | *is used in deck.* | |
| | | |
| | QEPH shell formulation. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{smstr}` | Shell small strain | |
| | formulation flag. | |
| | | |
| | *= -2* | |
| | | |
| | Automatically set the best | |
| | value according element type | |
| | and | |
| | | |
| | material law and overwrite | |
| | the value defined in any | |
| | shell | |
| | | |
| | properties. | |
| | | |
| | *= -1* | |
| | | |
| | Automatically set the best | |
| | value according element | |
| | type and | |
| | | |
| | material law. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 2. | |
| | | |
| | *= 1* | |
| | | |
| | Small strain from time = 0. | |
| | | |
| | (new formulation compatible | |
| | with all other formulation | |
| | flags). | |
| | | |
| | *= 2 (Default)* | |
| | | |
| | Full geometric nonlinearities| |
| | with possible small strain | |
| | | |
| | formulation activation in | |
| | Radioss Engine | |
| | (option /DT/Eltyp/ Iflag). | |
| | | |
| | *= 3* | |
| | | |
| | Old small strain formulation | |
| | (only compatible with | |
| | :math:`I_{shell}` =2). | |
| | | |
| | *= 4* | |
| | | |
| | Full geometric nonlinearities| |
| | (in Radioss Engine, option | |
| | | |
| | ``</DT/ SHELL/CST>`` | |
| | has no effect). | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{thick}` | Shell resultant | |
| | stressescalculation flag. | |
| | | |
| | *= -2* | |
| | | |
| | Automatically set the best | |
| | value according element | |
| | type and | |
| | | |
| | material law and overwrite | |
| | the value defined in any | |
| | shell | |
| | | |
| | properties. | |
| | | |
| | *= -1* | |
| | | |
| | Automatically set the best | |
| | value according element type | |
| | and | |
| | | |
| | material law. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 2. | |
| | | |
| | *= 1* | |
| | | |
| | Thickness change is taken | |
| | into account. | |
| | | |
| | *=2 (Default)* | |
| | | |
| | Thickness is constant. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{plas}` | Shell plane stress plasticity| |
| | flag. | |
| | | |
| | *= -2* | |
| | | |
| | Automatically set the best | |
| | value according element type | |
| | and | |
| | | |
| | material law and overwrite | |
| | the value defined in any | |
| | shell | |
| | | |
| | properties. | |
| | | |
| | *= -1* | |
| | | |
| | Automatically set the best | |
| | value according element type | |
| | and | |
| | | |
| | material law. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1 or 2. | |
| | | |
| | *=1 Default, if /IMPLICIT | |
| | is used in deck.* | |
| | | |
| | Iterative projection with | |
| | three Newton iterations. | |
| | | |
| | *=2 Default, if /IMPLICIT | |
| | is not used in deck.* | |
| | | |
| | Radial return | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{strain}` | Compute strains for | |
| | post-processing flag. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1. | |
| | | |
| | *=1 (Default)* | |
| | | |
| | Yes. | |
| | | |
| | *=2* | |
| | | |
| | No. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{sh3n}` | 3-node shell element | |
| | formulation flag. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 2. | |
| | | |
| | *=1* | |
| | | |
| | Standard triangle (C0). | |
| | | |
| | *=2 (Default)* | |
| | | |
| | Standard triangle (C0) with | |
| | modification for large | |
| | rotation. | |
| | | |
| | *=30* | |
| | | |
| | DKT18. | |
| | | |
| | *=31* | |
| | | |
| | DKT_S3, which based on DTK12 | |
| | of BATOZ (refer to the | |
| | | |
| | Element Library in the | |
| | *Theory Manual*). | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{dril}` | Drilling DOF stiffness flag. | |
| | | |
| | *=0* | |
| | | |
| | Set to 2. | |
| | | |
| | *=1 Default, if /IMPLICIT is | |
| | used in deck.* | |
| | | |
| | Yes. | |
| | | |
| | *=2 Default, if /IMPLICIT | |
| | is not used in deck.* | |
| | | |
| | No. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
**Comments**
**1.** This card is read only once. Only the first card ``</DEF_SHELL>`` written in the model is used. The other card ``</DEF_SHELL>`` is ignored.
**2.** Refer to the comments in /PROP/TYPE1 (SHELL) for more information about these input options.
**/DEF_SOLID**
| **Block Format Keyword**
| Used to set default values for certain parameters in all solid
properties and thick shells. The default values defined here will
be overwritten by any values entered on the individual property
input.
**Format**
+-------------------+------------------+------------------+---------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+=========+===================+====================+=================+==================+==================+=========+
| ``</DEF_SOLID>`` |
+-------------------+------------------+------------------+---------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| :math:`I_{solid*}`| :math:`I_{smstr}`| :math:`I_{cpre}` | | :math:`I_{tetra4}`| :math:`I_{tetra10}`| :math:`I_{mas}` | :math:`I_{frame}`| | |
+-------------------+------------------+------------------+---------+-------------------+--------------------+-----------------+------------------+------------------+---------+
..
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| :math:`I_{solid}` | Solid elements formulation | |
| | flag. 2 | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1 or 14. | |
| | | |
| | *=1* | |
| | | |
| | Default if /IMPLICIT is not | |
| | used in deck. | |
| | | |
| | Standard 8-node solid | |
| | element, one integration | |
| | point. | |
| | | |
| | Viscous hourglass formulation| |
| | with orthogonal and rigid | |
| | | |
| | deformation modes | |
| | compensation (Belytschko). | |
| | | |
| | *=2* | |
| | | |
| | Standard 8-node solid | |
| | element, one integration | |
| | point. | |
| | | |
| | Viscous hourglass formulation| |
| | without orthogonality | |
| | | |
| | (Hallquist). | |
| | | |
| | *=14* | |
| | | |
| | Default if ``</IMPLICIT>`` | |
| | is used in deck | |
| | | |
| | HA8 locking-free 8-node solid| |
| | or thick shell elements, co- | |
| | | |
| | rotational, full integration,| |
| | variable number of Gauss | |
| | points. | |
| | | |
| | *=15* | |
| | | |
| | HSEPH/PA6 thick shell | |
| | elements (8-node and 6-node | |
| | | |
| | respectively). Co-rotational,| |
| | under integrated (one Gauss | |
| | | |
| | point in the plane) with | |
| | physical stabilization. | |
| | Variable | |
| | | |
| | number of integration points | |
| | in thickness direction. | |
| | | |
| | *=16* | |
| | | |
| | Quadratic 16-node thick shell| |
| | or Quadratic 20-node solid, | |
| | | |
| | full integration, variable | |
| | number of Gauss points in all| |
| | | |
| | directions. | |
| | | |
| | *=17* | |
| | | |
| | H8C compatible solid full | |
| | integration formulation. | |
| | | |
| | *=18* | |
| | | |
| | 8-node solid element, | |
| | Co-rotational, full | |
| | integration, fixed | |
| | | |
| | 2*2*2 Gauss integration | |
| | points, shear locking-free, | |
| | :math:`I_{cpre}` and | |
| | | |
| | :math:`I_{smstr}` defaults | |
| | are based on material. | |
| | | |
| | *=24* | |
| | | |
| | HEPH 8-node solid element. | |
| | Co-rotational, | |
| | under-integrated | |
| | | |
| | (one Gauss point) with | |
| | physical stabilization. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{smstr}` | Small strain formulation | |
| | flag. 3 | |
| | | |
| | *= -2* | |
| | | |
| | Overwrite the value defined | |
| | in the property | |
| | (:math:`I_{smstr}`) with the | |
| | | |
| | best value based on element | |
| | type and material law. | |
| | | |
| | *= -1* | |
| | | |
| | Automatically define the best| |
| | value based on element type | |
| | | |
| | and material law, overwrite | |
| | only the property which | |
| | defined | |
| | | |
| | :math:`I_{smstr}` =0. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 4. | |
| | | |
| | *=1* | |
| | | |
| | Small strain from time = 0. | |
| | | |
| | *=2* | |
| | | |
| | Full geometric nonlinearities| |
| | with possible small strain | |
| | | |
| | formulation in Radioss Engine| |
| | (/DT/Eltyp/Iflag). | |
| | | |
| | *=3* | |
| | | |
| | Simplified small strain | |
| | formulation from time =0 | |
| | (non- | |
| | | |
| | objective formulation). | |
| | | |
| | *=4 (Default)* | |
| | | |
| | Full geometric nonlinearities| |
| | (``</DT/BRICK/CST>`` has no | |
| | effect). | |
| | | |
| | *=10* | |
| | | |
| | Lagrange type total strain | |
| | | |
| | *= 11* | |
| | | |
| | Total small strain | |
| | formulation from *t*\ = 0. | |
| | | |
| | *= 12* | |
| | | |
| | Lagrange type total strain | |
| | with possible switch to | |
| | total small | |
| | | |
| | strain formulation in Radioss| |
| | Engine (``</DT/BRICK/CST>``).| |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{cpre}` | Constant pressure | |
| | formulation flag. | |
| | | |
| | Only valid when *Isolid*\ | |
| | =14, 17, 18 or 24. | |
| | | |
| | *= -2* | |
| | | |
| | Overwrites the value defined | |
| | in the property | |
| | (:math:`I_{cpre}`) with the | |
| | | |
| | best value based on element | |
| | type and material law. | |
| | | |
| | *= -1* | |
| | | |
| | Automatically define the best| |
| | value based on element type | |
| | | |
| | and material law, overwrite | |
| | only the property which | |
| | defined | |
| | | |
| | :math:`I_{cpre}` =0. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1 or 3 depending on | |
| | the :math:`I_{solid}` value. | |
| | | |
| | *=1 (Default if Isolid =17)* | |
| | | |
| | Constant pressure formulation| |
| | to prevent volumetric | |
| | | |
| | locking. Use with | |
| | incompressible material, | |
| | where :math:`\nu \approx` | |
| | 0.5. | |
| | | |
| | *= 2* | |
| | | |
| | Formulation used is a | |
| | function of plasticity. | |
| | This allows the | |
| | | |
| | correct modeling of the | |
| | elastic region when the | |
| | material | |
| | | |
| | is compressible and the | |
| | plastic region when the | |
| | material | |
| | | |
| | becomes incompressible. Only | |
| | available for elasto-plastic | |
| | | |
| | material laws. | |
| | | |
| | *= 3 (Default if* | |
| | :math:`I_{solid}` | |
| | *=14 or 24)* | |
| | | |
| | Standard formulation without | |
| | constant pressure. Use with | |
| | | |
| | compressible materials, like | |
| | foam. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{tetra4}` | 4 node tetrahedral element | |
| | formulation flag. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *= 1* | |
| | | |
| | Quadratic ``</TETRA4>`` | |
| | formulation with six DOF | |
| | per node and | |
| | | |
| | four integration points. | |
| | | |
| | *= 3* | |
| | | |
| | Linear ``</TETRA4>`` with | |
| | nodal pressure averaging to | |
| | limit | |
| | | |
| | volumetric locking effect. | |
| | | |
| | *= 1000* | |
| | | |
| | Linear ``</TETRA4>`` | |
| | formulation with one | |
| | integration point. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{tetra10}` | 10 node tetrahedral element | |
| | formulation flag. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *= 2* | |
| | | |
| | Quadratic ``</TETRA10>`` | |
| | formulation with four | |
| | integration points | |
| | | |
| | and the same time step as a | |
| | ``</TETRA4>`` element with | |
| | | |
| | ``</DT1/ BRICK>``. | |
| | | |
| | *= 3* | |
| | | |
| | Quadratic ``</TETRA10>`` | |
| | formulation with four | |
| | integration points | |
| | | |
| | and the same time step as a | |
| | ``</TETRA4>`` element | |
| | (less stable | |
| | | |
| | for poorly shaped elements). | |
| | | |
| | *= 1000* | |
| | | |
| | Quadratic ``</TETRA10>`` | |
| | formulation with four | |
| | integration points. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{mas}` | Nodal mass distribution | |
| | (per element) flag. | |
| | | |
| | Only for tetra4 and tetra10 | |
| | element. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 2. | |
| | | |
| | *=1* | |
| | | |
| | Distribution taking into | |
| | account nodal volume angle. | |
| | | |
| | *=2 (Default)* | |
| | | |
| | Homogeneous distribution. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{frame}` | Element coordinate system | |
| | formulation flag. | |
| | | |
| | only for standard 8-node | |
| | bricks: :math:`I_{solid}` | |
| | =1, 2 or 17. | |
| | | |
| | *= -2* | |
| | | |
| | Overwrite the value defined | |
| | in the property | |
| | (:math:`I_{frame}` defined) | |
| | | |
| | with the best value based on | |
| | element type and material | |
| | law. | |
| | | |
| | *= -1* | |
| | | |
| | Automatically define the best| |
| | value based on element type | |
| | | |
| | and material law, overwrite | |
| | only the property which | |
| | defined | |
| | | |
| | :math:`I_{frame}` =0. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1. | |
| | | |
| | *=1 (Default)* | |
| | | |
| | Non co-rotational | |
| | formulation. | |
| | | |
| | *=2* | |
| | | |
| | Co-rotational formulation. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
**Comments**
**1.** This card is read only once. Only the first card ``</DEF_SOLID>``
written in the model is used. The other card ``</DEF_SOLID>`` is ignored.
**2.** When using the automatic setting option :math:`I_{smstr} = I_{cpre} = I_{frame} =-1` , the values for these options are defined using the
best options based on the element formulation, element type, and
material. Alternatively, defining :math:`I_{smstr} = I_{cpre} = I_{frame}` =-2
will overwrite the values for these options defined in this property
with the best value (``</DEF_SOLID>``) based on element type and material
law. To see the values defined by Radioss, review the “PART
ELEMENT/MATERIAL PARAMETER REVIEW” section of the Starter output
file.
**3.** Refer to the comments in /PROP/SOLID for more information about these input options.
**4.** If :math:`I_{smstr}` = -1, -2, :math:`I_{cpre}` =-1, -2 or -2; or :math:`I_{frame}` =
-1, -2, based on different materials, the best property values are
set automatically.
• Foam: :sup:`1`
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| Material | Element | :math:`I_{solid}`| :math:`I_{smstr}` | :math:`I_{cpre}` | :math:`I_{frame}`| :math:`I_{HKT}` | :math:`I_{h}` |
+===================+==================+==================+===================+====================+==================+==================+==================+
| LAW33 | HEXA | 24/18 | 2 | 3 | 2 | 1 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | TETRA4/TETRA10 | -- | 2 | 0 | 1 | 1 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| LAW38 | HEXA | 24/18 | 10 | 3 | 2 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | TETRA4/TETRA10 | -- | 10 | 0 | 1 | 0 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| LAW70 | HEXA | 24/18 | 11 | 3 | 2 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | TETRA4/TETRA10 | -- | 11 | 0 | 1 | 0 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | HEXA | 24/18 | 12 | 3 | 2 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | TETRA4/TETRA10 | -- | 12 | 0 | 1 | 0 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
• Rubber: :sup:`1`
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| Material | Element | :math:`I_{solid}`| :math:`I_{smstr}` | :math:`I_{cpre}` | :math:`I_{frame}`| :math:`I_{HKT}` | :math:`I_{h}` |
+===================+==================+==================+===================+====================+==================+==================+==================+
| LAW40 | HEXA | 24/18 | 2 | 3 | 2 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | TETRA4/TETRA10 | -- | 2 | 0 | 1 | 0 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| LAW42 | HEXA | 24/18 | 10 | 1 | 2 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | TETRA4/TETRA10 | -- | 10 | 0 | 1 | 0 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| LAW69 | HEXA | 24/18 | 10 | 1 | 2 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | TETRA4/TETRA10 | -- | 10 | -1 | 1 | 0 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| LAW88 | HEXA | 24/18 | 10 | 1 | 2 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | TETRA4/TETRA10 | -- | 10 | 0 | 1 | 0 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
• Elasto-plastic material: :sup:`1`
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| Material | Element | :math:`I_{solid}`| :math:`I_{smstr}` | :math:`I_{cpre}` | :math:`I_{frame}`| :math:`I_{HKT}` | :math:`I_{h}` |
+===================+==================+==================+===================+====================+==================+==================+==================+
| LAW1 | HEXA | 24 | 2 | 3 | 2 | 1 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | HEXA | 18 | 2 | 3 | 2 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | TETRA4/TETRA10 | -- | 2 | 0 | 1 | 0 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| LAW2 | HEXA | 24 | 2 | 2 | 2 | 1 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | HEXA | 18 | 2 | 2 | 2 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | TETRA4/TETRA10 | -- | 2 | 0 | 1 | 0 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| LAW36, | HEXA | 24 | 2 | 2 | 2 | 1 | 0 |
+ LAW44 +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | HEXA | 18 | 2 | 2 | 2 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
| | TETRA4/TETRA10 | -- | 2 | 0 | 1 | 0 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+
• Orthotropic material:
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+----------+
| Material | Element | :math:`I_{solid}`| :math:`I_{smstr}` | :math:`I_{cpre}` | :math:`I_{frame}`| :math:`I_{HKT}` | :math:`I_{h}` | *dn* |
+===================+==================+==================+===================+====================+==================+==================+==================+==========+
| LAW28 | HEXA | 1 | 1 | -1 | 2 | 0 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+----------+
| | HEXA | 18 | 1 | 3 | 2 | 0 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+----------+
| | TETRA4/TETRA10 | -- | 1 | -1 | 1 | 0 | 0 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+----------+
| LAW50 | HEXA | 1 | 1 | -1 | 1 | 0 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+----------+
| | HEXA | 18 | 1 | 2 | 2 | 0 | 0 | 0 |
+ +------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+----------+
| | TETRA4/TETRA10 | -- | 1 | -1 | 1 | 0 | 0 | 0 |
+-------------------+------------------+------------------+-------------------+--------------------+------------------+------------------+------------------+----------+
1. If hexagon element uses :math:`I_{solid}` =24, *dn* is automatically set to 0.1; if hexagon element uses :math:`I_{solid}` =18, *dn* is automatically set to 0.
**/DEFAULT/INTER/TYPE2**
| **Block Format Keyword**
| Defines interfaces TYPE2 default values.
**Format**
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| ``</DEFAULT/INTER/TYPE2>`` |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | *Ignore* | :math:`Spot_{flag}`| | :math:`I_{search}` | :math:`I_{del2}`| | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
Read this input, if :math:`Spot_{flag}` =25, 27 or 28:
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| | | | | | | :math:`I_{stf}` | | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| :math:`I_{gnore}` | Flag to ignore secondary | |
| | nodes if no main segment | |
| | found. 13 14 | |
| | | |
| | *=0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *=1* | |
| | | |
| | Secondary nodes with no main | |
| | segment found during the | |
| | | |
| | Starter are deleted from | |
| | the interface. | |
| | | |
| | *=2* | |
| | | |
| | Secondary nodes with no main | |
| | segment found during the | |
| | | |
| | Starter are deleted from the | |
| | interface, new calculation | |
| | for | |
| | | |
| | :math:`d_{search}` , if | |
| | :math:`d_{search}` = 0. | |
| | | |
| | *=3* | |
| | | |
| | Secondary nodes with no main | |
| | segment found during the | |
| | | |
| | Starter are deleted from the | |
| | interface, new calculation | |
| | for | |
| | | |
| | :math:`d_{search}` , if | |
| | :math:`d_{search}` = 0. | |
| | | |
| | *=1000 (Default)* | |
| | | |
| | No deletion of secondary | |
| | nodes. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`Spot_{flag}` | Spotweld formulation flag. | |
| | 4 5 6 7 8 12 | |
| | | |
| | *=0* | |
| | | |
| | Set to 4, if /CAA_ is used. | |
| | | |
| | Set to 5, if ``</CAA>`` | |
| | is not used. | |
| | | |
| | *=1* | |
| | | |
| | Formulation is optimized for | |
| | spot welds or rivets. | |
| | | |
| | *=2* | |
| | | |
| | Same formulation as standard | |
| | formulation. Required when | |
| | | |
| | using hierarchy levels. Not | |
| | compatible with nodal time | |
| | step, | |
| | | |
| | ``</DT/NODA/CST>``. | |
| | | |
| | *=4 Default, if* ``</CAA>`` | |
| | *is used.* | |
| | | |
| | Rotational DOF are not | |
| | transmitted, if shells are | |
| | used. Not | |
| | | |
| | compatible with nodal time | |
| | step ``</DT/NODA/CTS>``. | |
| | | |
| | *=5 Default, if* ``</CAA>`` | |
| | *is not used.* | |
| | | |
| | Standard formulation. | |
| | | |
| | *= 20, 21, 22* | |
| | | |
| | Formulation with failure. Not| |
| | compatible with nodal time | |
| | | |
| | step, ``</DT/NODA/CST>``. The| |
| | stress is computed for each | |
| | | |
| | secondary node according to | |
| | the "equivalent" surface | |
| | | |
| | around the node. The | |
| | equivalent surface is defined| |
| | | |
| | accordingly: | |
| | | |
| | **=20** | |
| | | |
| | Surface computed using shell | |
| | and brick faces attached to | |
| | the node. | |
| | | |
| | **=21** | |
| | | |
| | Surface computed using only | |
| | the shell attached to the | |
| | node. | |
| | | |
| | **=22** | |
| | | |
| | Surface computed using only | |
| | the brick faces attached to | |
| | the node. | |
| | | |
| | *=25* | |
| | | |
| | Penalty formulation | |
| | (not recommended). 19 | |
| | | |
| | *=27* | |
| | | |
| | Kinematic formulation similar| |
| | to :math:`Spot_{flag}` | |
| | =5 with an | |
| | | |
| | automatic switch to penalty | |
| | formulation when incompatible| |
| | | |
| | kinematic conditions occur. | |
| | 20 | |
| | | |
| | *=28* | |
| | | |
| | Kinematic formulation similar| |
| | to :math:`Spot_{flag}` | |
| | =1 with an | |
| | | |
| | automatic switch to penalty | |
| | formulation when incompatible| |
| | | |
| | kinematic conditions occur. | |
| | 20 | |
| | | |
| | *=30* | |
| | | |
| | Formulation with cubic | |
| | curvature of main segment. | |
| | Not | |
| | | |
| | compatible with nodal time | |
| | step, ``</DT/NODA/CST>``. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{search}` | Search formulation flag for | |
| | the closest main segment. | |
| | | |
| | *=0* | |
| | | |
| | Set to 2. | |
| | | |
| | *=1* | |
| | | |
| | Old formulation (only used | |
| | for previous version). | |
| | | |
| | *=2 (Default)* | |
| | | |
| | New improved formulation. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{del2}` | Node deletion flag. 9 10 16 | |
| | | |
| | *=0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *=1* | |
| | | |
| | Kinematic condition is | |
| | suppressed on the secondary | |
| | node, | |
| | | |
| | when all elements linked to | |
| | the main segment are deleted.| |
| | | |
| | (The secondary node is | |
| | removed from the interface). | |
| | | |
| | *=2* | |
| | | |
| | Kinematic condition is | |
| | suppressed on the secondary | |
| | node, | |
| | | |
| | if the main element is | |
| | deleted. (The secondary node | |
| | is | |
| | | |
| | removed from the interface). | |
| | | |
| | *=1000 (Default)* | |
| | | |
| | No deletion. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{stf}` | Interface stiffness | |
| | definition flag. 17 | |
| | | |
| | Only used with penalty | |
| | formulations | |
| | (:math:`Spot_{flag}` | |
| | =25, 27 or 28) | |
| | | |
| | *=0* | |
| | | |
| | Set to 2. | |
| | | |
| | *=1* | |
| | | |
| | Penalty stiffness is the | |
| | main stiffness. | |
| | | |
| | *=2 (Default)* | |
| | | |
| | Penalty stiffness is the | |
| | average of the main and | |
| | secondary | |
| | | |
| | stiffness. | |
| | | |
| | *=3* | |
| | | |
| | Penalty stiffness is the | |
| | maximum of the main and | |
| | secondary | |
| | | |
| | stiffness. | |
| | | |
| | *=4* | |
| | | |
| | Penalty stiffness is the | |
| | minimum of the main and | |
| | secondary | |
| | | |
| | stiffness. | |
| | | |
| | *=5* | |
| | | |
| | Penalty stiffness is the main| |
| | and secondary stiffness in | |
| | | |
| | series. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
**/DEFAULT/INTER/TYPE7**
| **Block Format Keyword**
| Defines default value for TYPE7 interfaces.
**Format**
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| ``</DEFAULT/INTER/TYPE7>`` |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| Blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | :math:`I_{stf}` | | :math:`I_{gap}` | | :math:`I_{bag}` | :math:`I_{del}` | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| Blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | | | *Irem_gap* |*Irem_i2*|
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
Required Fields
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| Blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | | *Inacti* | | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | | :math:`I_{form}` | | | | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| :math:`I_{stf}` | Interface stiffness | |
| | definition flag. 5 | |
| | | |
| | For SPH, only :math:`I_{stf}`| |
| | =0 and =1 are available. | |
| | | |
| | *=0* | |
| | | |
| | Set to 1000 | |
| | | |
| | *=1* | |
| | | |
| | Interface stiffness is | |
| | entered as *Stfac*. | |
| | | |
| | *=2* | |
| | | |
| | Interface stiffness is the | |
| | average of the main and | |
| | secondary | |
| | | |
| | stiffness. | |
| | | |
| | *=3* | |
| | | |
| | Interface stiffness is the | |
| | maximum of the main and | |
| | | |
| | secondary stiffness. | |
| | | |
| | *=4* | |
| | | |
| | Interface stiffness is the | |
| | minimum of the main and | |
| | | |
| | secondary stiffness. | |
| | | |
| | *=5* | |
| | | |
| | Interface stiffness is the | |
| | main and secondary stiffness | |
| | in | |
| | | |
| | series. | |
| | | |
| | *=1000 (Default)* | |
| | | |
| | Interface stiffness is | |
| | computed only based on the | |
| | main side | |
| | | |
| | stiffness. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{gap}` | Gap/element option flag. 13 | |
| | | |
| | *=0* | |
| | | |
| | Set to 1000 | |
| | | |
| | *=1* | |
| | | |
| | Variable gap varies according| |
| | to the characteristics of the| |
| | | |
| | impacted main surface and the| |
| | impacting secondary node. | |
| | | |
| | *=2* | |
| | | |
| | Variable gap + gap scale | |
| | correction of the computed | |
| | gap. | |
| | | |
| | *=3* | |
| | | |
| | Variable gap + gap scale | |
| | correction of the computed | |
| | gap | |
| | | |
| | + size of the mesh is taken | |
| | into account to avoid initial| |
| | | |
| | penetrations. | |
| | | |
| | *=1000 (Default)* | |
| | | |
| | Constant gap; equal to the | |
| | minimum gap :math:`Gap_{min}`| |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{bag}` | Airbag vent holes closure | |
| | flag in case of contact. | |
| | | |
| | *=0* | |
| | | |
| | Set to 1000 | |
| | | |
| | *=1* | |
| | | |
| | Closure | |
| | | |
| | *=1000 (Default)* | |
| | | |
| | No closure | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{del}` | Node and segment deletion | |
| | flag. | |
| | | |
| | *=0* | |
| | | |
| | Set to 1000 | |
| | | |
| | *=1* | |
| | | |
| | When all the elements (4-node| |
| | shells, 3-node shells solids)| |
| | | |
| | associated to one segment are| |
| | deleted, the segment is | |
| | | |
| | removed from the main side of| |
| | the interface. It is also | |
| | | |
| | removed in case of explicit | |
| | deletion using Radioss Engine| |
| | | |
| | keyword /DEL_ in the Engine | |
| | file. | |
| | | |
| | secondary side of the | |
| | interface. | |
| | | |
| | *=2* | |
| | | |
| | When a 4-node shell, a 3-node| |
| | shell or a solid element is | |
| | | |
| | deleted, the corresponding | |
| | segment is removed from the | |
| | | |
| | main side of the interface. | |
| | It is also removed in case of| |
| | | |
| | explicit deletion using | |
| | Radioss Engine keyword | |
| | ``</DEL>``. in the | |
| | | |
| | Engine file. | |
| | | |
| | Additionally, non-connected | |
| | nodes are removed from the | |
| | | |
| | secondary side of the | |
| | interface. | |
| | | |
| | *=-1* | |
| | | |
| | Same as =1, except | |
| | non-connected nodes are not | |
| | removed | |
| | | |
| | from the secondary side of | |
| | the interface. | |
| | | |
| | *=-2* | |
| | | |
| | Same as =2, except | |
| | non-connected nodes are not | |
| | removed | |
| | | |
| | from the secondary side of | |
| | the interface. | |
| | | |
| | *=1000 (Default)* | |
| | | |
| | No deletion. | |
| | | |
| | (Integer) | |
| | | |
| | ``|image72| **Note:** | |
| | :math:`I_{del}` =1 and -1 | |
| | have a higher CPU cost when | |
| | | |
| | compared with :math:`I_{del}`| |
| | =2 and -2.`` | |
+-----------------------+------------------------------+--------------+
| *Irem_gap* | Flag for deactivating | |
| | secondary nodes if element | |
| | size < gap value, | |
| | | |
| | in case of self-impact | |
| | contact. 24 | |
| | | |
| | *=0* | |
| | | |
| | Set to 1. | |
| | | |
| | *=1 (Default)* | |
| | | |
| | No deactivation of secondary | |
| | nodes. | |
| | | |
| | *=2* | |
| | | |
| | Deactivation of secondary | |
| | nodes. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Irem_i2* | Flag for deactivating the | |
| | secondary node, if the same | |
| | contact pair | |
| | | |
| | (nodes) has been defined in | |
| | interface TYPE2. | |
| | | |
| | *=0* | |
| | | |
| | Set to 1, if ``</IMPLICIT>`` | |
| | is defined. | |
| | | |
| | Set to 3 for explicit | |
| | solution. | |
| | | |
| | *=1 Default for implicit | |
| | solution (if* ``</IMPLICIT>``| |
| | *is defined)* | |
| | | |
| | Secondary nodes in | |
| | ``</INTER/TYPE2>`` tied | |
| | contacts are | |
| | | |
| | removed from this contact. | |
| | | |
| | *=3 Default for explicit | |
| | solution* | |
| | | |
| | No change to secondary nodes.| |
+-----------------------+------------------------------+--------------+
| *Inacti* = | Deactivation flag of | |
| | stiffness in case of initial | |
| | penetrations. | |
| | | |
| | *=0* | |
| | | |
| | Set to 1000 | |
| | | |
| | *=1* | |
| | | |
| | Deactivation of stiffness on | |
| | nodes | |
| | | |
| | *=2* | |
| | | |
| | Deactivation of stiffness on | |
| | elements | |
| | | |
| | *=3* | |
| | | |
| | Change node coordinates to | |
| | avoid initial penetrations | |
| | | |
| | *=5* | |
| | | |
| | Gap is variable with time | |
| | and initial gap is adjusted | |
| | as: | |
| | | |
| | :math:`gap_{0}=Gap-P_{0}`, | |
| | where :math:`P_{0}` is the | |
| | initial penetration | |
| | | |
| | *=6* | |
| | | |
| | Gap is variable with time but| |
| | initial gap is adjusted as | |
| | (the | |
| | | |
| | node is slightly | |
| | depenetrated). | |
| | | |
| | :math:`gap_{0}=Gap-P_{0}- | |
| | 5%\cdot (Gap-P_{0})` | |
| | | |
| | *=1000 (Default)* | |
| | | |
| | No action | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{form}` | Friction penalty formulation | |
| | type. 20 21 22 | |
| | | |
| | *=0* | |
| | | |
| | Set to 1. | |
| | | |
| | *=1 (Default)* | |
| | | |
| | Viscous (total) formulation. | |
| | | |
| | *=2* | |
| | | |
| | Stiffness (incremental) | |
| | formulation. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
**/DEFAULT/INTER/TYPE11**
| **Block Format Keyword**
| Defines default values for TYPE11 interfaces.
**Format**
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| ``</DEFAULT/INTER/TYPE11>`` |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| Blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | :math:`I_{stf}` | | :math:`I_{gap}` | | *Irem_gap* | :math:`I_{del}` | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | | | :math:`I_{form}` | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| Blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | | *Inacti* | | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| :math:`I_{stf}` | Stiffness definition flag. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 5 | |
| | | |
| | *= 1* | |
| | | |
| | Interface stiffness is | |
| | entered as *Stfac*. | |
| | | |
| | *=2* | |
| | | |
| | Interface stiffness is the | |
| | average of the main and | |
| | secondary | |
| | | |
| | stiffness. | |
| | | |
| | *=3* | |
| | | |
| | Interface stiffness is the | |
| | maximum of the main and | |
| | secondary | |
| | | |
| | stiffness. | |
| | | |
| | *=4* | |
| | | |
| | Interface stiffness is the y | |
| | minimum of the main and | |
| | secondar | |
| | | |
| | stiffness. | |
| | | |
| | *=5 (Default)* | |
| | | |
| | Interface stiffness is the | |
| | main and secondary stiffness | |
| | in | |
| | | |
| | series. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{gap}` | Gap/element option flag. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *= 1* | |
| | | |
| | Gap varies accordingly to the| |
| | characteristics of the | |
| | impacted | |
| | | |
| | main line and the impacting | |
| | secondary node. | |
| | | |
| | *= 3* | |
| | | |
| | Gap varies according to the | |
| | characteristics of the | |
| | impacted | |
| | | |
| | main line and the impacting | |
| | secondary node + gap is taken| |
| | | |
| | into account the size of | |
| | the elements. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | Gap is constant equal to | |
| | :math:`Gap_{min}`. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Irem_gap* | Flag for deactivating | |
| | neighboring secondary line | |
| | segments, if | |
| | | |
| | element size < gap value in | |
| | case of self-impact contact. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1. | |
| | | |
| | *= 1 (Default)* | |
| | | |
| | No deactivation of secondary | |
| | line segments. | |
| | | |
| | *= 2* | |
| | | |
| | Deactivation of neighboring | |
| | secondary line segments. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{del}` | Node and segment deletion | |
| | flag. 6 | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *= 1* | |
| | | |
| | When all the elements (4-node| |
| | shells, 3-node shells, | |
| | solids, | |
| | | |
| | beams, trusses, and springs) | |
| | associated to one segment | |
| | | |
| | are deleted, the segment is | |
| | removed from the interface. | |
| | It | |
| | | |
| | is also removed in case of | |
| | explicit deletion using | |
| | Radioss | |
| | | |
| | Engine keyword /DEL_ in the | |
| | Engine file. | |
| | | |
| | Additionally, non-connected | |
| | nodes are removed from the | |
| | | |
| | interface. | |
| | | |
| | *= 2* | |
| | | |
| | When an element (4-node | |
| | shell, 3-node shell, solid, | |
| | beam, | |
| | | |
| | truss, spring) is deleted, | |
| | the corresponding segment is | |
| | | |
| | removed from the interface. | |
| | It is also removed in case of| |
| | | |
| | explicit deletion using | |
| | Radioss Engine keyword /DEL_ | |
| | in the | |
| | | |
| | Engine file. | |
| | | |
| | Additionally, non-connected | |
| | nodes are removed from the | |
| | | |
| | interface. | |
| | | |
| | *= -1* | |
| | | |
| | Same as =1, except | |
| | non-connected nodes are not | |
| | removed | |
| | | |
| | from the secondary side of | |
| | the interface. | |
| | | |
| | *= -2* | |
| | | |
| | Same as =2, except | |
| | non-connected nodes are not | |
| | removed | |
| | | |
| | from the secondary side of | |
| | the interface. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | No deletion. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{form}` | Friction penalty formulation | |
| | type. 17 | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1. | |
| | | |
| | *= 1 (Default)* | |
| | | |
| | Viscous (total) formulation. | |
| | | |
| | *= 2* | |
| | | |
| | Stiffness (incremental) | |
| | formulation. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Inacti* | Deactivation flag of | |
| | stiffness. 13 | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *= 1* | |
| | | |
| | Deactivation of stiffness on | |
| | nodes. | |
| | | |
| | *= 2* | |
| | | |
| | Deactivation of stiffness | |
| | on elements. | |
| | | |
| | *= 3* | |
| | | |
| | Change node coordinates to | |
| | avoid initial penetrations. | |
| | | |
| | *= 5* | |
| | | |
| | Gap is variable with time and| |
| | initial gap is computed as: | |
| | | |
| | :math:`gap_{0}=Gap-P_{0}` | |
| | where, :math:`P_{0}` is the | |
| | initial penetration. | |
| | | |
| | *= 6* | |
| | | |
| | Gap is variable with time but| |
| | initial penetration is | |
| | computed | |
| | | |
| | as (the node is slightly | |
| | depenetrated): | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | No action. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
**/DEFAULT/INTER/TYPE19**
| **Block Format Keyword**
| Defines default values for TYPE19 interfaces.
**Format**
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| ``</DEFAULT/INTER/TYPE19>`` |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | :math:`I_{stf}` | | :math:`I_{gap}` | :math:`I_{edge}` | :math:`I_{bag}` | :math:`I_{del}` | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | | | | | | | *Irem_gap* |*Irem_i2*|
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
Required Fields
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | | *Inacti* | | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | | :math:`I_{form}` | | | | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| :math:`I_{stf}` | Stiffness definition flag. 9 | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *= 1* | |
| | | |
| | Interface stiffness is | |
| | entered as *Stfac*. | |
| | | |
| | *=2* | |
| | | |
| | Interface stiffness is the | |
| | average of the main and | |
| | secondary | |
| | | |
| | stiffness. | |
| | | |
| | *=3* | |
| | | |
| | Interface stiffness is the | |
| | maximum of the main and | |
| | | |
| | secondary stiffness. | |
| | | |
| | *=4* | |
| | | |
| | Interface stiffness is the | |
| | minimum of the main and | |
| | | |
| | secondary stiffness. | |
| | | |
| | *=5* | |
| | | |
| | Interface stiffness is the | |
| | main and secondary stiffness | |
| | in | |
| | | |
| | series. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | For node to surface contact, | |
| | interface stiffness is only | |
| | based | |
| | | |
| | on main stiffnes. | |
| | | |
| | For edge to edge contact, | |
| | interface stiffness is the | |
| | main and | |
| | | |
| | secondary stiffness in | |
| | series. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{gap}` | Gap/element option flag. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000 | |
| | | |
| | *= 1* | |
| | | |
| | Gap varies accordingly to the| |
| | characteristics of the | |
| | impacted | |
| | | |
| | main surface and the | |
| | impacting secondary node. | |
| | | |
| | *= 3* | |
| | | |
| | Variable gap + gap scale | |
| | correction of the computed | |
| | gap | |
| | | |
| | + size of the mesh is taken | |
| | into account to avoid initial| |
| | | |
| | penetrations. | |
| | | |
| | *= 4* | |
| | | |
| | Node to surface contact uses | |
| | variable gap + gap scale | |
| | | |
| | correction of the computed | |
| | gap + deactivation of | |
| | neighbor | |
| | | |
| | secondary nodes, if element | |
| | size < gap. Edge contact | |
| | uses a | |
| | | |
| | constant contact gap, | |
| | :math:`Gap_{min.}` | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | Gap is constant and equal | |
| | to the minimum gap. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{edge}` | Edge to edge contact flag. 24| |
| | | |
| | **= 0** Set to 2. | |
| | | |
| | **= 1** Only external edges | |
| | of defined surfaces | |
| | | |
| | are generated. | |
| | | |
| | **= 2 (Default)** All segment| |
| | edges of defined surfaces are| |
| | | |
| | generated. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{bag}` | Airbag vent holes closure | |
| | flag in case of contact. | |
| | | |
| | **= 0** Set to 2. | |
| | | |
| | **= 1** Closure. | |
| | | |
| | **= 2 (Default)** No closure.| |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{del}` | Node and segment deletion | |
| | flag. 6 | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *= 1* | |
| | | |
| | When all the elements (4-node| |
| | shells, 3-node shells, | |
| | solids) | |
| | | |
| | associated to one segment are| |
| | deleted, the segment is | |
| | | |
| | removed from the main side of| |
| | the interface. It is also | |
| | | |
| | removed in case of explicit | |
| | deletion using Radioss Engine| |
| | | |
| | keyword /DEL_ in the Engine | |
| | file. | |
| | | |
| | Additionally, non-connected | |
| | nodes are removed from the | |
| | | |
| | secondary side of the | |
| | interface. | |
| | | |
| | *= 2* | |
| | | |
| | When a 4-node shell, a 3-node| |
| | shell or a solid element is | |
| | | |
| | deleted, the corresponding | |
| | segment is removed from the | |
| | | |
| | main side of the interface. | |
| | It is also removed in case of| |
| | | |
| | explicit deletion using | |
| | Radioss Engine keyword /DEL_ | |
| | in the | |
| | | |
| | Engine file. | |
| | | |
| | Additionally, non-connected | |
| | nodes are removed from the | |
| | | |
| | secondary side of the | |
| | interface. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | No deletion. | |
| | | |
| | *= -1* | |
| | | |
| | Same as =1, except | |
| | non-connected nodes are | |
| | not removed | |
| | | |
| | from the secondary side of | |
| | the interface. | |
| | | |
| | *= -2* | |
| | | |
| | Same as =2, except | |
| | non-connected nodes are | |
| | not removed | |
| | | |
| | from the secondary side | |
| | of the interface. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Irem_gap* | Flag for deactivating | |
| | secondary nodes, if element p| |
| | size < ga | |
| | | |
| | value, in case of | |
| | self-impact contact. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1. | |
| | | |
| | *= 1 (Default)* | |
| | | |
| | No deactivation of | |
| | secondary nodes. | |
| | | |
| | *= 2* | |
| | | |
| | Deactivation of | |
| | secondary nodes. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Irem_i2* | Flag for deactivating the | |
| | secondary node, if the same | |
| | contact pair | |
| | | |
| | (nodes) has been defined | |
| | in ``</INTER/TYPE2>``. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1, if ``</IMPLICIT>`` | |
| | is defined. | |
| | | |
| | Set to 3 for explicit | |
| | solution. | |
| | | |
| | *= 1 (default for implicit | |
| | solution, if* ``</IMPLICIT>``| |
| | *is defined)* | |
| | | |
| | Secondary nodes in | |
| | ``</INTER/TYPE2>`` tied | |
| | contacts are | |
| | | |
| | removed from this contact. | |
| | | |
| | *= 3 (default for explicit | |
| | solution)* | |
| | | |
| | No change to secondary nodes.| |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Inacti* | Deactivation flag of | |
| | stiffness in case of initial | |
| | penetrations. 19 | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000 | |
| | | |
| | *= 1* | |
| | | |
| | Deactivation of stiffness | |
| | on nodes | |
| | | |
| | *= 2* | |
| | | |
| | Deactivation of stiffness | |
| | on elements | |
| | | |
| | *= 3* | |
| | | |
| | Change node coordinates to | |
| | avoid initial penetrations | |
| | | |
| | *= 5* | |
| | | |
| | Gap is variable with time and| |
| | initial gap is computed as: | |
| | | |
| | :math:`gap_{0}=Gap-P_{0}` | |
| | | |
| | where, :math:`P_{0}` is | |
| | the initial penetration. | |
| | | |
| | *= 6* | |
| | | |
| | Gap is variable with time, | |
| | but initial penetration is | |
| | computed | |
| | | |
| | as (the node is slightly | |
| | depenetrated): | |
| | | |
| | :math:`gap_{0}=Gap-P_{0}- | |
| | 5% \cdot (Gap-P_{0})` | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | No action. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{form}` | Friction penalty formulation | |
| | type. | |
| | | |
| | **= 0** Set to 1. | |
| | | |
| | **= 1 (Default)** Viscous | |
| | (total) formulation. | |
| | | |
| | **= 2** Stiffness | |
| | (incremental) formulation. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
**/DEFAULT/INTER/TYPE24**
| **Block Format Keyword**
| Defines default values for all ``</INTER/TYPE24>``.
**Format**
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| ``</DEFAULT/INTER/TYPE24>`` |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| Blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | :math:`I_{stf}` | | | *Irem_i2* | | :math:`I_{del}` | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | :math:`I_{edge}` | | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | :math:`I_{gap0}` | :math:`I_{pen0}` | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
Required Fields
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| Blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | | *Inacti* | | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| Blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| :math:`I_{stf}` | Interface stiffness | |
| | definition flag. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *=2* | |
| | | |
| | Interface stiffness is the | |
| | average of the main and | |
| | secondary | |
| | | |
| | stiffness. | |
| | | |
| | *=3* | |
| | | |
| | Interface stiffness is the | |
| | maximum of the main and | |
| | | |
| | secondary stiffness. | |
| | | |
| | *=4* | |
| | | |
| | Interface stiffness is the | |
| | minimum of the main and | |
| | | |
| | secondary stiffness. | |
| | | |
| | *=5* | |
| | | |
| | Interface stiffness is the | |
| | main and secondary stiffness | |
| | in | |
| | | |
| | series. | |
| | | |
| | *6* | |
| | | |
| | Interface stiffness is the | |
| | minimum of the main and | |
| | | |
| | secondary stiffness with | |
| | special adjustment to improve| |
| | | |
| | convergence for implicit | |
| | solution. | |
| | | |
| | *= 12* | |
| | | |
| | Nitsche method is used with | |
| | the average of the main and | |
| | | |
| | secondary stiffness. | |
| | | |
| | *= 13* | |
| | | |
| | Nitsche method is used with | |
| | the maximum of the main and | |
| | | |
| | secondary stiffness. | |
| | | |
| | *= 14* | |
| | | |
| | Nitsche method is used with | |
| | the maximum of the main and | |
| | | |
| | secondary stiffness. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | Interface stiffness is only | |
| | based on the main side | |
| | stiffness. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Irem_i2* | Flag for deactivating the | |
| | secondary node, if the | |
| | same contact pair | |
| | | |
| | (nodes/segment) has been | |
| | defined in interface TYPE2. | |
| | | |
| | *=0* | |
| | | |
| | Set to 1. | |
| | | |
| | *=1 (Default)* | |
| | | |
| | Secondary nodes in | |
| | ``</INTER/TYPE2 tied | |
| | contacts>`` are | |
| | | |
| | removed from this contact. | |
| | | |
| | *=3* | |
| | | |
| | No change to secondary nodes.| |
+-----------------------+------------------------------+--------------+
| :math:`I_{del}` | Node and segment deletion | |
| | flag. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *= 1* | |
| | | |
| | When all the elements (4-node| |
| | shells, 3-node shells, | |
| | solids) | |
| | | |
| | associated to one segment | |
| | are deleted, the segment is | |
| | | |
| | removed from the main side | |
| | of the interface. It is also | |
| | | |
| | removed in case of explicit | |
| | deletion using Radioss Engine| |
| | | |
| | keyword ``</DEL>`` in the | |
| | Engine file. | |
| | | |
| | Additionally, non-connected | |
| | nodes are removed from the | |
| | | |
| | secondary side of the | |
| | interface. | |
| | | |
| | *= 2* | |
| | | |
| | When a 4-node shell, a 3-node| |
| | shell or a solid element is | |
| | | |
| | deleted, the corresponding | |
| | segment is removed from the | |
| | | |
| | main side of the interface. | |
| | It is also removed in case of| |
| | | |
| | explicit deletion using | |
| | Radioss Engine keyword | |
| | ``</DEL>`` in the | |
| | | |
| | Engine file. | |
| | | |
| | Additionally, non-connected | |
| | nodes are removed from the | |
| | | |
| | secondary side of the | |
| | interface. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | No deletion. | |
| | | |
| | **Note:** Using | |
| | :math:`I_{del}` results in | |
| | higher CPU cost. | |
+-----------------------+------------------------------+--------------+
| :math:`I_{edge}` | Edge definition flag. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *= 1* | |
| | | |
| | Edge to edge contact is | |
| | activated using the external | |
| | border | |
| | | |
| | edges from | |
| | :math:`surf\_ID_{1}` and | |
| | :math:`surf\_ID_{2}` and | |
| | sharp edges between | |
| | | |
| | contact segments. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | No edge to edge contact. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{gap0*}` | Gap modification flag for | |
| | secondary shell nodes on | |
| | the free edges. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *= 1* | |
| | | |
| | Set gap to zero for the | |
| | secondary shell nodes. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | No change. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{pen0}` | Initial penetration | |
| | detection flag. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *= 1* | |
| | | |
| | Including self-impact in | |
| | each part. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | Excluding self-impact in | |
| | each part. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Inacti* | Initial penetration flag. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *= -1* | |
| | | |
| | All initial penetrations | |
| | are taken into account. | |
| | | |
| | *= 5* | |
| | | |
| | The main segment is shifted | |
| | by the initial penetration | |
| | | |
| | value :math:`P_{0}` if | |
| | :math:`P \geq P_{0}` , then | |
| | :math:`P^{'}=P-P_{0}` , where| |
| | :math:`P_{0}` is the initial | |
| | | |
| | penetration. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | Only tiny initial | |
| | penetrations (1.0e-08) | |
| | will be taken into | |
| | | |
| | account. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
**/DEFAULT/INTER/TYPE25**
| **Block Format Keyword**
| Defines default values for all ``</INTER/TYPE25.>``
**Format**
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| ``</DEFAULT/INTER/TYPE25>`` |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| Blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | :math:`I_{stf}` | | :math:`I_{gap}` | *Irem_i2* | | :math:`I_{del}` | :math:`I_{edge}` | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| Blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | :math:`I_{gap0}` | :math:`I_{shape}` | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
Required Fields
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| Blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| | | | *Inacti* | | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| Blank |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| :math:`I_{stf}` | Interface stiffness | |
| | definition flag. | |
| | | |
| | *=0* | |
| | | |
| | Set to 1000. | |
| | | |
| | *2* | |
| | | |
| | Interface stiffness is the | |
| | average of the main and | |
| | secondary | |
| | | |
| | stiffness. | |
| | | |
| | *3* | |
| | | |
| | Interface stiffness is the | |
| | average of the main and | |
| | secondary | |
| | | |
| | stiffness. | |
| | | |
| | *4* | |
| | | |
| | Interface stiffness is the | |
| | minimum of the main and | |
| | | |
| | secondary stiffness. | |
| | | |
| | *5* | |
| | | |
| | Interface stiffness is the | |
| | main and secondary stiffness | |
| | in | |
| | | |
| | series. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | Interface stiffness is only | |
| | based on the main side | |
| | stiffness. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{gap}` | Gap/element option flag. | |
| | | |
| | *=0* | |
| | | |
| | Set to 1 | |
| | | |
| | *=1 (Default)* | |
| | | |
| | Variable gap varies according| |
| | to the characteristics of the| |
| | | |
| | impacted main surface and the| |
| | impacting secondary node. | |
| | | |
| | *=2* | |
| | | |
| | Variable gap + deactivating | |
| | secondary nodes if element | |
| | | |
| | size < gap value, in case of | |
| | self-impact contact similar | |
| | to | |
| | | |
| | *Irem_gap*\ =2 for | |
| | ``</INTER/TYPE7.>`` | |
| | | |
| | *=3* | |
| | | |
| | Variable gap + size of the | |
| | mesh is taken into account to| |
| | | |
| | avoid initial penetrations. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{shape}` | Flag defining the shape of | |
| | the gap along free edges. | |
| | | |
| | *= 0* | |
| | | |
| | Set to 1. | |
| | | |
| | *= 1 (Default)* | |
| | | |
| | Square gap. | |
| | | |
| | *= 2* | |
| | | |
| | Round gap. | |
+-----------------------+------------------------------+--------------+
| *Irem_i2* | Deactivating flag for the | |
| | secondary node, if the | |
| | same contact pair | |
| | | |
| | (nodes) has been defined | |
| | in interface TYPE2. | |
| | | |
| | *=0* | |
| | | |
| | Set to 1 | |
| | | |
| | *=1 (Default)* | |
| | | |
| | Secondary nodes in | |
| | ``</INTER/TYPE2>`` tied | |
| | contacts are | |
| | | |
| | removed from this contact. | |
| | | |
| | *=3* | |
| | | |
| | No change to secondary nodes.| |
+-----------------------+------------------------------+--------------+
| :math:`I_{del}` | *=0* | |
| | | |
| | Set to 1000 | |
| | | |
| | *= 1* | |
| | | |
| | When all the elements (4-node| |
| | shells, 3-node shells, | |
| | solids) | |
| | | |
| | associated to one segment | |
| | are deleted, the segment is | |
| | | |
| | removed from the main side | |
| | of the interface. It is also | |
| | | |
| | removed in case of explicit | |
| | deletion using Radioss Engine| |
| | | |
| | keyword ``</DEL>`` in | |
| | the Engine file. | |
| | | |
| | Additionally, non-connected | |
| | nodes are removed from the | |
| | | |
| | secondary side of the | |
| | interface. | |
| | | |
| | *= 2* | |
| | | |
| | When a 4-node shell, a 3-node| |
| | shell or a solid element is | |
| | | |
| | deleted, the corresponding | |
| | segment is removed from the | |
| | | |
| | main side of the interface. | |
| | It is also removed in case of| |
| | | |
| | explicit deletion using | |
| | Radioss Engine keyword | |
| | ``</DEL>`` in the | |
| | | |
| | Engine file. | |
| | | |
| | Additionally, non-connected | |
| | nodes are removed from the | |
| | | |
| | secondary side of the | |
| | interface. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | No deletion. | |
+-----------------------+------------------------------+--------------+
| :math:`I_{edge}` | Edge contact options. Contact| |
| | occurs between main and | |
| | | |
| | secondary edges which are | |
| | automatically extracted from | |
| | :math:`surf\_ID_{1}` | |
| | | |
| | and :math:`surf\_ID_{2}` . | |
| | Sharp edges for external | |
| | solid faces are defined | |
| | | |
| | using the angle *Edge_angle*.| |
| | | |
| | *= 0* | |
| | | |
| | Set to the value defined in | |
| | ``</DEFAULT/INTER/TYPE25>`` | |
| | | |
| | *= 1* | |
| | | |
| | The secondary and the main | |
| | edges are the external border| |
| | | |
| | edges of shell segments. | |
| | There is no edge contact | |
| | for solid | |
| | | |
| | elements. | |
| | | |
| | *= 11* | |
| | | |
| | The secondary edges are the | |
| | sharp edges of the external | |
| | | |
| | solid segments and external | |
| | border edges of shell | |
| | | |
| | segments. The main edges are | |
| | all edges from external solid| |
| | | |
| | segments and external border | |
| | edges of shell segments. | |
| | | |
| | *= 13* | |
| | | |
| | The secondary edges are the | |
| | sharp edges of the external | |
| | | |
| | solid segments and external | |
| | border edges of shell | |
| | | |
| | segments. The main edges are | |
| | all edges from external solid| |
| | | |
| | segments and all shell | |
| | segments. | |
| | | |
| | *= 22* | |
| | | |
| | The secondary and main edges | |
| | are all edges from external | |
| | | |
| | solid segments and all edges | |
| | from shell segments. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | No edge to edge contact. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{gap0}` | Gap modification flag for | |
| | secondary shell nodes on | |
| | the free edges. | |
| | | |
| | *=0* | |
| | | |
| | Set to 1000 | |
| | | |
| | *= 1* | |
| | | |
| | Set gap to zero for the | |
| | secondary shell nodes. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | No change. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Inacti* | Initial penetration flag. | |
| | | |
| | *=0* | |
| | | |
| | Set to 1000 | |
| | | |
| | *= -1* | |
| | | |
| | All initial penetrations | |
| | are taken into account. | |
| | | |
| | *= 5* | |
| | | |
| | The main segment is shifted | |
| | by the initial penetration | |
| | value | |
| | | |
| | :math:`O_{0.}` | |
| | | |
| | if :math:`P \geq P_{0}` , | |
| | then :math:`P'=P-P_{0}` , | |
| | where :math:`P_{0}` is the | |
| | initial | |
| | | |
| | penetration. | |
| | | |
| | *= 1000 (Default)* | |
| | | |
| | Only tiny initial | |
| | penetrations (1.0e-08) | |
| | will be taken into | |
| | | |
| | account. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
/IMPLICIT
^^^^^^^^^
| **Block Format Keyword**
| This option allows different default values which are suitable for implicit calculations.
**Format**
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| ``</IMPLICIT>`` |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Changed Values**
+-----------------+-------------------+-------------------+-----------------+
| **Option** | **Name** | **Description** | **NewValue** |
+=================+===================+===================+=================+
| | :math:`I_{plas}` | Shell plane stress| 1 (iterative |
| | | | |
| | | plasticity flag | projection with |
| | | | three |
| | | | |
| | | | Newton |
| | | | iterations) |
+ +-------------------+-------------------+-----------------+
| /DEF_SHELL_ | :math:`I_{shell}` | Shell | |
| | | formulation flag | 24 |
+ +-------------------+-------------------+-----------------+
| | :math:`I_{dril}` | Drilling degree of| 1 |
| | | | |
| | | freedom | |
| | | stiffness flag | |
+-----------------+-------------------+-------------------+-----------------+
| /DEF_SOLID_ | :math:`I_{solid}` | Solid | |
| | | formulation | 14 |
| | | flag | |
+-----------------+-------------------+-------------------+-----------------+
| /INTER/TYPE7_ | *Irem_i2* | Deactivate the | 1 |
| | | | |
| | | secondary node | |
| | | flag | |
+-----------------+-------------------+-------------------+-----------------+
| **Comments**
| **1.** Some default values are different in certain options. See /SPMD_ (Obsolete_) and /INTER_/TYPE24_.
/SPHGLO
^^^^^^^^^^^^^
**Block Format Keyword**
Describes the SPH global parameters.
**Format**
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| ``</SPHGLO>`` |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| :math:`\alpha_{sort}` | *Maxsph* | *Lneigh* | *Nneigh* | *Isol2sph* | | | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| :math:`\alpha_{sort}` | Security coefficient on | |
| | search for neighbors, | |
| | so that for each | |
| | | |
| | particle more than the actual| |
| | neighbors are found. This | |
| | allows | |
| | | |
| | reducing the computational | |
| | time. 1 | |
| | | |
| | Maximum value is set to 0.5 | |
| | | |
| | Default = 0.25 (Real) | |
+-----------------------+------------------------------+--------------+
| *Maxsph* | Maximum number of ghost | |
| | particles allowed to be | |
| | created at | |
| | | |
| | one time. It is used to | |
| | allocate memory for | |
| | ghost particles | |
| | | |
| | creation. Since v14.0.220, | |
| | this input is ignored | |
| | and the memory is | |
| | | |
| | dynamically allocated. 2 | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Lneigh* | Maximum number of neighbors | |
| | to be taken into account | |
| | for the | |
| | | |
| | SPH approximation. | |
| | | |
| | Default = 120, if *Nneigh* | |
| | = 0 | |
| | | |
| | otherwise, = max(120, | |
| | *Nneigh*) | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Nneigh* | Maximum number of neighbors | |
| | | |
| | Default = 120 (Integer) | |
+-----------------------+------------------------------+--------------+
| *Isol2sph* | Particle activation process | |
| | method for Sol2SPH. 7 | |
| | | |
| | *=0 (Default)* | |
| | | |
| | Set to 1. | |
| | | |
| | *=1* | |
| | | |
| | Switch of elements to | |
| | particles based on part. | |
| | | |
| | *=2* | |
| | | |
| | Switch of elements to | |
| | particles based on subset. | |
+-----------------------+------------------------------+--------------+
**Comments**
**1.** :math:`\alpha_{sort}` is a security coefficient which is used when
searching for neighbors, so that for each particle more than the
actual neighbors are found. This allows reducing the computational
time.
Nevertheless, the number of neighbors found within the security
distance should not be too large.
It is recommended to set the value of :math:`\alpha_{sort}` , so that neighbors
next to the neighbors lying at distance 2h into the initial net will
be retained (where h is the smoothing length defined into property).
This leads to :math:`\alpha_{sort}` =0.25 (default value), if the net is an
hexagonal net and is the minimum distance between two particles into
the net.
**2.** *Maxsph* is the maximum number of ghost particles which will
be allowed to be created at one time. It is used to allocate memory
for ghost particles creation.
Since v14.0.220, *Maxsph* is ignored and the memory is dynamically
allocated.
*Maxsph* default's value is the number of SPH symmetry conditions
multiplied by the number of particles, which corresponds to the case
of all particles are symmetrized with respect to each conditions and
is sufficient to treat any problem.
It is recommended to use the default value for *Maxsph*.
Nevertheless, all particles do not generally need to be symmetrized
with respect to each condition and *Maxsph* default's value can lead
in specific cases to a large over-estimation of the necessary memory
(refer to Maximum Created Number of Ghost Particles ).
**3.** *Nneigh* is the maximum number of neighbors to be stored
around each particle.
It determines the memory allowed for storing the neighbors within the
security distance at each bucket sort (refer to Maximum Stored Number
of Neighbors).
**4.** *Lneigh* determines the maximum number of particles
participating to the SPH approximation around each particle. Thus,
the number of particles participating to the SPH approximation around
a particle, generally depends on the particle diameter , but is
limited to *Lneigh*.
**5.** If *Nneigh* is less than 120, *Nneigh* is set to 120.
If *Nneigh* is not equal to 0 and less than *Lneigh*, *Nneigh* is set
to *Lneigh*.
**6.** Setting *Nneigh* > *Lneigh* enables reducing the frequency of
particles sorting.
**7.** For Sol2sph:
If *Isol2sph*\ =1, if an unreleased particle of a main solid element
is within interaction distance of any particle of another solid
element belonging to a different part, then both solid elements are
deleted and their particles are released.
If *Isol2sph*\ =2 the switch is activated only if the solid elements
belong to different subsets.
| **See Also**
| Smooth Particle Hydrodynamics (SPH)
Solid to SPH Option (Sol2SPH)
SPH Cell Distribution (Theory Manual)
**/STAMPING**
| **Block Format Keyword**
| This option allows adapting error messages to stamping
applications.
**Format**
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| ``</STAMPING>`` |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Computation**
**/AMS**
| **Block Format Keyword**
| Describes the part group on which the advanced mass scaling is applied.
**Format**
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+==================+====================+===================+====================+=================+==================+==================+=========+
| ``</AMS>`` |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| *grpart_ID* | | | | | | | | | |
+-------------------+------------------+------------------+--------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| *grpart_ID* | Part group identifier. | |
| | | |
| | (Integer, maximum 10 digits) | |
+-----------------------+------------------------------+--------------+
**Comments**
**1.** Advanced Mass Scaling (AMS) allows setting the time step to a
higher value than the usual elementary or nodal time step to the
whole model or a group of its parts. ``</AMS>`` allows specifying a group
parts on which AMS is applied. To minimize computing time, it is
advised to also apply classical mass scaling to the parts not
belonging to ``</AMS>`` part group, otherwise; no AMS processed parts are,
by default, computed in natural Elementary time step. If no part
group is specified (blank line) or is equal to 0, then AMS is applied
to the model in its whole.
**2.** AMS does not modify the global mass so that the global
momentum of the related nodes is conserved. Engine keyword
``</DT/NODA/CST>`` (or ``</DT/INTER/CST>``) can coexist with ``</DT/AMS>`` for
optimized computing time performances when ``</AMS>`` is applied to only a
group of parts.
**3.** In order to activate ``</AMS>`` on the part group or the entire
model, keyword ``</DT/AMS>`` (invoking AMS elementary time step) must be
present in Engine Input. It should appear only once in the Starter
input deck.
**4.** If ``</DT/AMS>`` is present in Radioss Engine Input, option ``</AMS>`` is
mandatory in Radioss Starter Input. It should appear only once in the
Starter input deck.
**5.** Rigid bodies, involving nodes where AMS applies, can be
activated and deactivated with Engine keywords ``</RBODY/ON>`` and ``</OFF>``,
but not with sensors /SENSOR from Starter.
• When using AMS, it is recommended to set :math:`I_{stf}` to 4 and stiffness scale factor set to its default
value for interfaces TYPE7, TYPE11 and TYPE19. It is also recommended
to set *Iform* to 2 (incremental stiffness formulation for Coulomb
friction) whenever this formulation is available (for example:
interfaces TYPE7, and TYPE19)
• When using AMS and the interfaces TYPE7, TYPE11, and TYPE19 with a
nonlinear penalty stiffness for contact, it may be necessary to use
``</DT/INTER/DEL>`` in Radioss Engine input deck; otherwise, AMS may slowly
converge, or possibly diverge.
**6.** When using AMS, it is recommended to set the inertia to
spherical (:math:`I_{spher}` set to 1) for small rigid bodies.
**7.** When using AMS, it is advised to set *DOMDEC* to 5 in option
``</SPMD>`` (for versions 11.0.230 and above, set it to 0 and Radioss
automatically applies the relevant *DOMDEC* option).
**8.** For information about limitations related to AMS, refer to
Capabilities and Limitations (AMS) in the *User Guide*.
**9.** Automatic element selection for AMS can be activated if
``</DT/CST_AMS>`` is present in Engine Input (Refer to /DT/CST_AMS for more
information concerning automatic selection). If a group of part is
specified alongside with automatic selection then the total element
selection for AMS is the sum of the two selections.
| **See Also**
| Advanced Mass Scaling Recommended Checklist (User Guide)
Example: Automotive Application
Metal Forming Application Example
RD-E: 4400 Blow Molding with AMS
**/ANALY**
| **Block Format Keyword**
| Defines the type of analysis and sets analysis flags.
**Format**
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+===================+=====================+===================+====================+=================+==================+==================+=========+
| ``</ANALY>`` |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| :math:`N_{2D3D}` | | :math:`I_{parith}`| :math:`I_{subcycle}`| | | | | | |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| :math:`N_{2D3D}` | Analysis type. | |
| | | |
| | *= 0 (Default)* | |
| | | |
| | Tri-dimensional. | |
| | | |
| | *= 1* | |
| | | |
| | Axisymmetrical. | |
| | | |
| | *= 2* | |
| | | |
| | Plane strain. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{parith}` | Parallel arithmetic | |
| | option flag. | |
| | | |
| | *= 0 (Default)* | |
| | | |
| | Set to 1. | |
| | | |
| | *= 1* | |
| | | |
| | Parallel arithmetic | |
| | option is ON. | |
| | | |
| | *= 2* | |
| | | |
| | Parallel arithmetic | |
| | option is OFF. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| :math:`I_{subcycle}` | Subcycling shell | |
| | elements flag. | |
| | | |
| | *= 0* | |
| | | |
| | No subcycling. | |
| | | |
| | *= 2* | |
| | | |
| | Subcycling option n2 - in | |
| | Radioss Starter Input file is| |
| | | |
| | only necessary in order for | |
| | the Radioss Starter to | |
| | allocate | |
| | | |
| | additional memory. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
**Comments**
**1.** :math:`N_{2D3D}` define analysis type for both axisymmetrical analysis
(:math:`N_{2D3D}` =1) and plane strain analysis (:math:`N_{2D3D}` =2), the elements
must be defined in YZ plane and their normal has to be in the
positive x-direction. It is recommended to define the model in the Y+
and Z+ quadrant for 2D analysis (:math:`N_{2D3D}` =1, 2). For axisymmetrical
analysis mesh of model should never cross the axis Y=0.
• In axisymmetrical analysis (:math:`N_{2D3D}` =1), Y is the radial direction
and Z is the axis of revolution.
• In plane strain analysis (:math:`N_{2D3D}` =2), X is the plane strain
direction.
**2.** If parallel arithmetic flag is set ON, the same numerical
results will be obtained irrespective of the number of processors
used. This result is not guaranteed in case of incompatible kinematic
conditions in the model.
**3.** Subcycling option n2 (new option) may be used in cases where
some solid parts have a very low time step compared to the shell
structure and the shell structures represent a significant percentage
of the number of elements.
**4.** Subcycling option n2 needs to be activated with the /SHSUB
keyword in the Engine Input manual. Subcycling may then be activated
but not during the run, it is possible to make a run with subcycling
and to switch after restart without subcycling, and vice versa.
| **See Also**
| RD-E: 0700 Pendulums
RD-E: 0800 Hopkinson Bar
RD-E: 1900 Wave Propagation
**/EIG**
| **Block Format Keyword**
| Defines the eigen modes and static modes computation for flexible
bodies.
**Format**
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+===================+=====================+===================+====================+=================+==================+==================+=========+
| ``< /EIG>``/*eig_ID*/*unit_ID* |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| *eig_title* |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| *grnd_ID* | *grnd_bc* | *Trarot* | *Ifile* | | | | | | |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| *Nmod* | *Inorm* | *Cutfreq* | *Freqmin* | | | | |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| *Nbloc* | *Incv* | *Niter* | *Ipri* | *Tol* | | | | |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| *Filename* |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| *eig_ID* | Mode identifier. | |
| | | |
| | (Integer, maximum 10 digits) | |
+-----------------------+------------------------------+--------------+
| *unit_ID* | Unit Identifier. | |
| | | |
| | (Integer, maximum 10 digits) | |
+-----------------------+------------------------------+--------------+
| *eig_title* | Mode title. | |
| | | |
| | (Character, maximum 100 | |
| | characters) | |
+-----------------------+------------------------------+--------------+
| *grnd_ID* | Node group to which the | |
| | modes will be computed. | |
| | | |
| | *= 0* | |
| | | |
| | Modes are computed for the | |
| | entire structure. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *grnd_bc* | Node group to which specific | |
| | eigen modes are applied. 3 | |
| | | |
| | *= 0* | |
| | | |
| | Free eigen modes are | |
| | computed. | |
| | | |
| | *в‰ 0* | |
| | | |
| | The node group defines a | |
| | set of interface nodes. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Trarot* | Codes for translations | |
| | and rotations. | |
| | | |
| | (6 Booleans) | |
+-----------------------+------------------------------+--------------+
| *Ifile* | Additional modes file flag. 5| |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Nmod* | Maximum number of modes | |
| | to be computed. | |
| | | |
| | Default = 100 (Integer) | |
+-----------------------+------------------------------+--------------+
| *Inorm* | Eigenvector normalization | |
| | method flag. | |
| | | |
| | *= 0 (Default)* | |
| | | |
| | Eignvectors are normalized | |
| | to the unit value of the | |
| | | |
| | generalized mass. | |
| | | |
| | *= 1* | |
| | | |
| | Eigenvectors are normalized | |
| | to the unit value of the | |
| | largest | |
| | | |
| | displacement in the analysis | |
| | set. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Cutfreq* | Maximum eigen frequency. | **[Hz]** |
| | | |
| | *= 0* | |
| | | |
| | All *Nmod* eigen modes whose | |
| | frequencies are higher than | |
| | | |
| | *Freqmin* are computed. | |
| | | |
| | *в‰ 0* | |
| | | |
| | At most *Nmod* eigen modes | |
| | whose frequencies lie in the | |
| | | |
| | frequency range *Freqmin*, | |
| | *Cutfreq* are computed. | |
| | | |
| | (Real) | |
+-----------------------+------------------------------+--------------+
| *Freqmin* | Minimum eigen frequency. 7 | **[Hz]** |
| | | |
| | Default = 0.001 Hz (Real) | |
+-----------------------+------------------------------+--------------+
| *Nbloc* | Number of eigen modes per | |
| | block. 9 | |
| | | |
| | *в‰ 0* | |
| | | |
| | The modes are computed per | |
| | block of *Nbloc* eigen modes.| |
| | | |
| | *= 0* | |
| | | |
| | All eigen modes are computed | |
| | at the same time. | |
| | | |
| | (Integer) | |
+-----------------------+------------------------------+--------------+
| *Incv* | Factor to obtain the number | |
| | of Lanczos basis | |
| | vectors to use | |
| | | |
| | throughout the computation. | |
| | 10 | |
| | | |
| | Default = 2 (Integer) | |
+-----------------------+------------------------------+--------------+
| *Niter* | Maximum number of Arnoldi | |
| | iterations. | |
| | | |
| | Default = 300 (Integer) | |
+-----------------------+------------------------------+--------------+
| *Ipri* | Printout level for ARPACK. | |
| | | |
| | Default = 0 (Integer) | |
+-----------------------+------------------------------+--------------+
| *Tol* | Relative accuracy to which | |
| | eigen values are to be | |
| | computed. | |
| | | |
| | *= 0* | |
| | | |
| | The tolerance for eigenvalues| |
| | accuracy is set to machine | |
| | | |
| | precision. | |
| | | |
| | Default = 0.0 (Real) | |
+-----------------------+------------------------------+--------------+
| *Filename* | Additional modes file name. | |
| | | |
| | (Character, maximum 100 | |
| | characters) | |
+-----------------------+------------------------------+--------------+
**Comments**
**1.** This functionality is implemented for the purpose of the
generation of flexible bodies. For detailed normal modes analysis of
a model the use of the Bulk Data Format is strongly recommended.
**2.** The use of the implicit option /IMPL/LINEAR_ in the Radioss
Engine is required to compute normal modes.
**3.** Boundary condition corresponding to the codes for translations
and rotations are added to these nodes for the computation of eigen
modes. Static modes, one for each additional blocked DOF, are
computed.
A static mode corresponds to the static response of the structure,
all DOF of the set of interface nodes concerned by additional
boundary conditions being blocked; except one taking the one value.
**4.** The codes for translations and rotations follow the same rule
as for the /BCS_ option.
**5.** If *Ifile* в‰ 0: An additional file is provided containing pre-computed modes from a normal modes
analysis, either experimental or numerical. These modes are used to
reduce the dimension of the space in which eigenvalues are sought and
thus enhance efficiency.
If *Ifile* = 1, the additional file is given in a format defined in
External Modes File.
**6.** Multi-level condensation is no longer supported.
**7.** The default (if set blank or zero) for *Freqmin* is 0.001 Hz.
If a value other than zero is entered, that value defines a frequency
in the unit system set for ``</EIG>``. The capability of computing rigid
body modes is not fully implemented. It is recommended to either
sufficiently constrain the model or to select a value for *Freqmin*
that is high enough to eliminate all rigid body modes.
**8.** Eigen modes are computed using ARPACK software (R. Lehoucq, K.
Maschhoff, D. Sorensen, C. Yang).
.. image:: vertopal_1f24d025e1584408b29da3c44d85ceef/media/image32.png
:width: 4.75972in
:height: 3.90556in
*Figure 1:*
**9.** Better precision is achieved when only a small number of eigen
modes are computed simultaneously.
**10.** The number of Lanczos basis vectors to use through the course
of the computation is given from the number of required eigenvalues
per block (or total if *Nbloc* = 0) by the formula:
:math:`N_{Lanczos vectors} = N_{required eigenvalues}` \* *Incv*.
**11.** For the post-processing of modes shapes in HyperView, Radioss
Starter input file (*000.rad) should be chosen in the Load Model
panel and the first output animation file (*A001 which contains the
first mode) in the Load Result panel.
| **/PARAMETER**
| **Block Format Keyword**
| This card defines values of parameters in the Starter file that
will be used throughout the Radioss model.
The values replace the corresponding parameter names in various
Radioss cards. The option allows easier parameterization of the
model.
**Format**
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+===================+=====================+===================+====================+=================+==================+==================+=========+
| ``</PARAMETER>`` */*type*/*Parameter_ID* |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| *parameter_title* |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
If *type* = INTEGER
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+===================+=====================+===================+====================+=================+==================+==================+=========+
| *ParName* | *Ivalue* | | | | | | | |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
If *type* = REAL
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+===================+=====================+===================+====================+=================+==================+==================+=========+
| *ParName* | *Rvalue* | | | | | | |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
If *type* = INT_EXPR or REAL_EXPR
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+===================+=====================+===================+====================+=================+==================+==================+=========+
| *ParName* | Expression |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| ... Expression ... |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| Up to 10 lines |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
If *type* = TEXT
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+===================+=====================+===================+====================+=================+==================+==================+=========+
| *ParName* | *Length* | | | | | | |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+===================+=====================+===================+====================+=================+==================+==================+=========+
| Text |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| Up to 10 lines |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| *range* | **GLOBAL** | |
| | Parameter value is used | |
| | everywhere in | |
| | | |
| | the input deck. | |
| | | |
| | **LOCAL** | |
| | Parameter value is used only | |
| | inside | |
| | | |
| | of a certain submodel. Note | |
| | that GLOBAL parameter | |
| | | |
| | definition with same | |
| | parameter name will be | |
| | overwritten. | |
+-----------------------+------------------------------+--------------+
| *type* | Parameter type: | |
| | | |
| | **INTEGER** Integer value | |
| | | |
| | **REAL** Real value | |
| | | |
| | **INT_EXPR** Equation of | |
| | integer parameters | |
| | | |
| | **REAL_EXPR** Equation of | |
| | real parameters | |
| | | |
| | **TEXT** Text characters | |
+-----------------------+------------------------------+--------------+
| *Parameter_ID* | Parameter identifier. | |
| | | |
| | (Integer, maximum 10 digits) | |
+-----------------------+------------------------------+--------------+
| *parameter_title* | Parameter title. | |
| | | |
| | (Character, maximum 100 | |
| | | |
| | characters) | |
+-----------------------+------------------------------+--------------+
| *ParName* | Parameter name. 3 | |
| | | |
| | (Character string, maximum of| |
| | 9 characters and MUST be | |
| | aligned | |
| | | |
| | to the left of the field for | |
| | all types, except | |
| | *type*\ =TEXT) | |
+-----------------------+------------------------------+--------------+
| *Ivalue* | Parameter integer value. | |
| | | |
| | (Integer, maximum 10 digits) | |
+-----------------------+------------------------------+--------------+
| *Rvalue* | Parameter real value. | |
| | | |
| | (Real, maximum 20 digits) | |
+-----------------------+------------------------------+--------------+
| *Expression* | Parameter expression. 6 | |
+-----------------------+------------------------------+--------------+
| *Length* | Length of character | |
| | parameter. | |
| | | |
| | **=0** The full line is read.| |
| | | |
| | (Integer, maximum 100 digits)| |
+-----------------------+------------------------------+--------------+
| *Text* | Parameter character text. | |
| | | |
| | (Character string, maximum | |
| | of 100 characters) | |
+-----------------------+------------------------------+--------------+
**Example 1**
::
#RADIOSS STARTER
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PARAMETER/GLOBAL/REAL/1
Time to fire
TTF 10
/PARAMETER/GLOBAL/INTEGER/2
Identifier to sensor
SENS_ID 1
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
. . .
/BEGIN
. . .
/SENSOR/TIME/&SENS_ID
Airbag fire time use global parameter TTF=10.0
&TTF
. . .
//SUBMODEL/1
# sub-model title
submodel
# Off_dft Off_nod Off_elt Off_part Off_mat Off_prop
0 0 0 0 0 0
#include airbag_submodel.inc
//ENDSUB
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
. . .
/END
# In include file “airbag_submodel.inc”:
/PARAMETER/LOCAL/REAL/1
Time to fire
TTF 20
. . .
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/SENSOR/TIME/2
Use local parameter TTF, it is now covered to 20.0 inside
include file
&TTF
. . .
#ENDDATA
**Example 2**
::
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PARAMETER/GLOBAL/INTEGER/8
surf part for airbag
s_part 4
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
. . .
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/SURF/PART/4
Airbag - surf normal of part 4 reversed with -4
2-&s_part 5 6 7 8
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/END
**Example 3**
::
#RADIOSS STARTER
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PARAMETER/GLOBAL/REAL/2
Molar mass of inflating gas
MW .025
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PARAMETER/GLOBAL/REAL/3
Cp heat constant molar
CPM 13
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PARAMETER/GLOBAL/REAL_EXPR/4
Cp heat constant mass
CP CPM/MW
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PARAMETER/GLOBAL/REAL/9
Molar mass of inflating gas
MW1 .024
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
**Example 4**
::
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PARAMETER/GLOBAL/TEXT/7
text parameter for part 5
var
1 1 0
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
. . . | |
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/PART/5
Chamber_2_lower
&var
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
**Example 5**
::
Rotation axe X
RotX 5
XX
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
. . .
#---1----|----2----|----3----|----4----|----5----|----6----|----7----|----8----|----9----|---10----|
/IMPDISP/1
Top 2
# Ifunct DIR Iskew Isensor Gnod_id Frame Icoor
5 &RotX 0 0 24 0 0
# Scale_x Scale_y Tstart Tstop
0 3.141592654 0 0
**Example 6**
::
Text parameter definition:
/PARAMETER/GLOBAL/TEXT/1
Update output
Name 12
EXAMPLE_TEXT
…….
Text parameter reference. Text parameter is stitched with text string “123456”:
/TH/NODE/2
&Name$123456
# var1 var2 var3 var4 var5 var6 var7 var8 var9 var10 DEF
# NODid Iskew NODname
5 0&Name$123456
After parameter replacement:
TH GROUP: 2,EXAMPLE_TEXT123456 , 6 VAR, 1 NODE :
-------------------
DX DY DZ VX VY VZ
NODE SKEW(OR FRAME) NAME
5 0 0EXAMPLE_TEXT123456
**Comments**
**1.** ``</PARAMETER/LOCAL>`` cards can be specified and used only inside
of a submodel (``<//SUBMODEL>``). Local parameter overwrites a global
parameter definition with the same name inside of the submodel, where
it is specified. Local parameters can be specified in any part of
submodel.
**2.** ``<ParName>`` requirements:
• Only letters, numbers, and underscores are valid characters; no
other characters are allowed.
• Parameter names must always begin with a letter and are case
sensitive; for example, Thickness, THICKNESS, and thickness are all
different variable names.
• Parameter names cannot be words reserved for Templex statements,
implicit variables, or string and mathematical functions or operators
defined in the Math Reference section of the *HyperWorks Reference
Guide*. These reserved words are not case sensitive; for example,
Time, time, TIME, Date, date, DATE are not valid parameter names
because Time and Date are math functions.
• Names of include files, and keywords cannot be used as parameters.
**3.** Parameters with a name *ParName* can be referenced after
``</BEGIN>`` card for global parameters and in any place of submodel for
local parameters, using the syntax, ``<&ParName>``. Multiple references of
such parameters are possible.
**4.** The ``<&ParName>`` input found after ``</BEGIN>`` is replaced by the
corresponding parameter value or keyword identifier starting at the
location of the & in the variable name extending 10 digits for an
integer, 20 digits for a real value, and Length input value for
*type*\ =TEXT.
The character '&' can be used in the model only for referring
parameters or keyword identifiers. It should not be used in card
titles that are not defined as parameters.
In Example_ 1, a parameter named "TTF" is defined in the ``</PARAMETER>``
card. The value of the parameter (10) is aligned to the left of the
field. The parameter is used with an additional prefix "&", in the
/SENSOR_ card.
**5.** If the minus (-) sign is used before the prefix "&", as:
``<-&ParName>``
Then, the value of the parameter is multiplied by -1. In this case,
``<ParName>`` must not exceed 8 digits.
For example (Example_ 2), if you need exchange external surface normal
for airbag.
• Set parameter *s_part*\ =4 and specific ``<-&s_part>`` in surface definition, then a value of "-4" will
be substituted for ``<-&s_part>``. -> shell normal reversed.
• Set parameter *s_part*\ =-4 and specific &s_part in surface
definition, then a value of "-4" will be substituted for &s_part. ->
shell normal reversed.
• Set parameter s_part=-4 and specific ``<-&s_part>`` in surface
definition, then a value of "4" will be substituted for ``<-&s_part>``". ->
shell normal not reversed.
**6.** The expression parameter cards, type */INT_EXPR* or
*/REAL_EXPR* accept parameters as
arguments. These argument parameters should be defined before these
expression parameter cards in the input deck. The expression
results are calculated to a maximum accuracy of 12 digits. The
external templex program is used to evaluate expressions. Refer to
Expression_ Operators_ for more information.
In Example_ 3, parameters *MW* and *CPM* are defined before the
expression parameter card type */REAL_EXPR*. The expression parameter
card (*/4*) calculates the value of CP which is equal to *CPM/MW*.
The value *MW1* cannot be used in this expression parameter card
(*/4*) because it is defined after the */REAL_EXPR* card. If
*CPM/MW1* is specified in the expression parameter card (*/4*), the
program runs into an error.
**7.** During the execution of the expression parameter types
*INT_EXPR* or *REAL_EXPR*, Radioss Starter calls an external
executable: ``<templex>``. This program is available in the standard
HyperWorks installation. The call to ``<templex.exe>`` is automatically
managed by the Compute Console (ACC) or the Radioss run script. Refer
to Run_ Radioss_.
**8.** If the Compute Console (ACC) or the Radioss run script is not
used, the following environment variables need to be defined:
• ``<TEMPLEX_PATH>``
Windows: ``<=%ALTAIR_HOME%\hw\bin\[win64]\>``
Linux: ``<$ALTAIR_HOME/hw/bin/linux64/>``
• On Linux, update ``<LD_LIBRARY_PATH>`` with the following path:
``<$ALTAIR_HOME/hw/tcl/tcl[version]/linux64/lib;$ALTAIR_HOME/hw/bin/linux64; $ALTAIR_HOME/hw/lib/ linux64>``
+-----------------------------------------------------------------------+
| |image119| **Note:** The fields within [ ] will |
| need to be updated with the correct values. |
+-----------------------------------------------------------------------+
**9.** Type could also be TEXT.
In Example_ 4, the string " 1 1 0" is defined for TEXT parameter
"var". This parameter is used in part definition. The property ID 1
and material ID 1 have been set for part 5.
**10.** TEXT type parameter can be used to specify the direction for
an imposed movement. Since the text input to ``</IMPDISP>`` must be right
justified, the ``<&RotX>`` must be right justified when entered. Since
``<&RotX>`` is 5 characters long, *Length*\ =5 and the text must be entered
as 5 characters right justified, “ XX”: See Example_ 5.
**11.** TEXT type parameter can be stitched together with character
“$”: See Example_ 6.
**/PERTURB/FAIL/BIQUAD**
| **Block Format Keyword**
| This option can be used to study the robustness of a design by
generating different failure values for every shell element using
the failure model. The random noise scale factors can have either a
normal (Gaussian) distribution or random distribution.
**Format**
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| **(1)** | **(2)** | **(3)** | **(4)** | **(5)** | **(6)** | **(7)** | **(8)** | **(9)** |**(10)** |
+===================+==================+===================+=====================+===================+====================+=================+==================+==================+=========+
| ``</PERTURB/FAIL/BIQUAD>`` */ID* |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| *perturb_title* |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| *F_Mean* | *Deviation* | *Min_cut* | *Max_cut* | *Seed* |*Idistri*|
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
| *fail_ID* | *parameter* | | | | | | | |
+-------------------+------------------+-------------------+---------------------+-------------------+--------------------+-----------------+------------------+------------------+---------+
**Definitions**
+-----------------------+------------------------------+--------------+
| **Field** | **Contents** | **SI Unit** |
| | | |
| | | **Example** |
+=======================+==============================+==============+
| *ID* | Perturb identifier. | |
| | | |
| | (Integer, maximum 10 digit) | |
+-----------------------+------------------------------+--------------+
| *perturb_title* | Perturb title. | |
| | | |
| | (Character, maximum | |
| | 100 characters) | |
+-----------------------+------------------------------+--------------+
| *F_Mean* | Mean value of the random | |
| | noise scale factor. | |
| | | |
| | (Real) | |
+-----------------------+------------------------------+--------------+
| *Deviation* | Standard deviation for the | |
| | normal distribution | |
| | Only used when | |
| | | |
| | *Idistri* = 2. | |
| | | |
| | (Real) | |
+-----------------------+------------------------------+--------------+
| *Min_cut* | Minimum value for random | |
| | noise scale factor. | |
| | Must be entered | |
| | | |
| | when using *Idistri*\ =1, | |
| | random distribution. | |
| | | |
| | If random value is < | |
| | *Min_cut*, random value | |
| | is replaced with | |
| | | |
| | *Min_cut*. | |
| | | |
| | (Real) | |
+-----------------------+------------------------------+--------------+
| | | |
| | | |
| | | |
+-----------------------------------------------------------------------+
| |image113|\ Proprietary Information of Altair Engineering |
+=======================================================================+
+-----------------------------------------------------------------------+
.. |image72| image:: vertopal_1f24d025e1584408b29da3c44d85ceef/media/image2.png
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:height: 0.16667in
.. |image119| image:: vertopal_1f24d025e1584408b29da3c44d85ceef/media/image2.png
:width: 0.16667in
:height: 0.16667in