New Keywords in 2023
New and modified features in Radioss.
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New Starter Keywords
- /FAIL/HOFFMAN - Hoffman composite failure model
- /FAIL/MAXSTRAIN - maximum strain composite failure model
- /FAIL/TSAIHILL - Tsai-Hill composite failure model
- /FAIL/TSAIWU - Tsai-Wu composite failure model
- /GAUGE/POINT - defines fixed position gauges
- /INCLUDE_LS-DYNA - Include file definition of LS-DYNA format
- /LOAD/PCYL - defines a pressure load in a cylindrical system
- /MAT/LAW122 (MODIFIED_LADEVEZE) - Modified Ladeveze unidirection composite ply model
- /MAT/LAW124 (CDPM2) - concrete material law accounting for plasticity, damage, and strain rate effect
- /VISC/LPRONY - visco-elastic law
Modified Starter Keywords
- /DAMP/INTER - added new option, Iselect
- /FRICTION, /INTER/TYPE19, /INTER/TYPE21, /INTER/TYPE23, /INTER/TYPE24, and /INTER/TYPE25 - added new friction model Ifric=4
- /IOFLAG - added new Ipri=6 and 7
- /LOAD/PBLAST - added new Tstop parameter
- /MAT/LAW34 (BOLTZMAN) - added new parameters FLC and FAC
- /MAT/LAW66 - added scale factor, RPCT and optional compression Young's modulus, Ec
- /MAT/LAW79 (JOHN_HOLM) - added cutoff frequency for strain rate filtering option, Fcut
- /MAT/LAW113 (SPR_BEAM) - added new function, fct_ID5i
- /PLOAD and /PROP/TYPE1 (SHELL) - removed flag Ipinch
- /PROP/TYPE6 (SOL_ORTH), /PROP/TYPE14 (SOLID), /PROP/TYPE20 (TSHELL), /PROP/TYPE21 (TSH_ORTH), /PROP/TYPE22 (TSH_COMP) - added new parameters Vdef_min, Vdef_max, APS_max and COL_min
- /PROP/TYPE14 (SOLID) - added new flag Iale
- /SENSOR/ENERGY - added new subset or global energy selector, Iselect
- /SENSOR/TIME - added new input parameter, Tstop
- /TH/BEAM - added option, EPSD
- /TH/SH3N - added NL_PLAS and NL_EPSD
- /TH/SURF - added new variables A and P
Modified Engine Keywords
- /ANIM/DT, /H3D/DT - added new parameter, Tstop
- /ANIM/Eltyp/Restype - added options, EPSD and TILLOTSON
- /DYNAIN/DT - added option, Zip_flag
New LS-DYNA Keywords
- *AIRBAG_LINEAR_FLUID_ID - defines a control volume filled with a liquid
- *AIRBAG_PARTICLE - defines a Finite Volume Method airbag
- *CONSTRAINED_NODAL_SET - defines a translational constraint to a set of nodes in the global coordinate system
- *CONTROL_HOURGLASS - define default solid and hourglass formulation for 8-node solid elements
- *DEFINE_TABLE_3D - defines a 3D table
- *DEFINE_VECTOR_NODES - define a local vector direction with nodes
- *ELEMENT_SEATBELT_SLIPRING - defines a 1D seat belt slipring
- *HOURGLASS - define solid and hourglass formulation for 8-node solid elements
- *INCLUDE_RADIOSS - defines an include file of Radioss format
- *LOAD_BODY_PARTS - describes the set of part(s) on which the load body is applied
- *LOAD_RIGID_BODY - defines a concentrated force or moment applied on main node of a defined rigid body
- *LOAD_SEGMENT - defines pressure load on a segment defined by node or by set of segments
- *MAT_ADD_DAMAGE_DIEM - defines failure criteria in which damage initiation and damage evolution can be separately defined
- *MAT_012 (ISOTROPIC_ELASTIC_PLASTIC) - defines an isotropic, elasto-plastic material
- *MAT_054 (ENHANCED_COMPOSITE_DAMAGE) - defines an orthotropic shell composite material for unidirectional layers with Chang-Chang failure model
- *MAT_058 (LAMINATED_COMPOSITE_FABRIC) - defines an orthotropic shell composite material for unidirectional layers, complete laminates, and woven fabrics material
- *MAT_076 (GENERAL_VISCOELASTIC) - an isotropic, visco-elastic material
- *MAT_091 (SOFT_TISSUE) and *MAT_092 (SOFT_TISSUE_VISCO) - used to represent biological soft tissues such as ligaments based on Mooney-Rivlin formulation
- *MAT_105 (DAMAGE_2) - defines an elastic viscoplastic material mode
- *MAT_120 (GURSON) - defines a nonlinear elasto-plastic based on the Gurson constitutive law
- *MAT_156 (MUSCLE) - defines a muscle model for safety applications
- *MAT_224 (TABULATED_JOHNSON_COOK) - this model expresses material stress as a function of strain, strain rate, temperature dependency and plastic strain failure criterion
- *MAT_S15 (SPRING_MUSCLE) - defines a muscle model for discrete elements
- *PART_COMPOSITE - defines a part for composite application that contains material and ply information
Modified LS-DYNA Keywords
- *CONTACT_AUTOMATIC_NODES_TO_SURFACE, *CONTACT_AUTOMATIC_SINGLE_SURFACE and *CONTACT_AUTOMATIC_SURFACE_TO_SURFACE - added new parameter DTSTIF and optional cards B and C
- *CONTROL_UNITS - added new options inch, foot, lb, slug and slinch
- *MAT_ADD_EROSION - read and convert into /FAIL/GENE1, /FAIL/TAB2, /FAIL/INIEVO
- *MAT_034 (FABRIC) - added new parameters FLC and FAC
- *MAT_124 (PLASTICITY_COMPRESSION_TENSION) - added new parameters Ec and RPCT in the reader
- *PART - added new hourglass identifier HGID