New Keywords in 2021

2021

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New Starter Keywords

/ALE/GRID/LAPLACIAN and /ALE/GRID/VOLUME - Added new ALE grid control options
/BCS/CYCLIC - Added new cyclic boundary condition
/CHECK/RFILE/OFF - Added option to stop the Starter after model check
/FAIL/GURSON - Added new non-local regularization method
/FAIL/MULLINS_OR - Added new failure model based on Mullins, Ogden and Roxburgh model
/MAT/LAW101 - Added new elastic-viscous-plastic model for polymer materials
/MAT/LAW104 - Added new elastic-plastic material law for high tensile strength steel and damage model
/MAT/LAW108 (SPR_GENE) - Spring material works with six independent modes of deformation and accounts for nonlinear stiffness, damping and different unloading
/MAT/LAW109 - New tabulated elasto-plastic material with strain rate and temperature dependency, linear and logarithmic strain rate interpolation
/MAT/LAW110 (VEGTER) - New material with Corus-Vegter material formulation
/MAT/LAW113 (SPR_BEAM) - Beam type spring material works as a beam element with six independent modes of deformation
/MONVOL/FVMBAG2 - Added new Simpler Finite Volume airbag input
/SET/GENERAL - Added new general set
/TRANSFORM/POSITION - Transformation by 6 points

Modified Starter Keywords

/DEF_SOLID - Removed I_strain, added I_cpre, new options for I_frame, and I_smstr
/FAIL/FABRIC and /FAIL/HASHIN - Default value change
/FRAME/FIX - Support for a local unit system
/INIMAP1D and /INIMAP2D - New support for Volume Fractions
/INTER/TYPE7 - Added new option I_TIED to tie secondary nodes to main nodes when the interface timestep drops
/INTER/TYPE21 - Added new option for the thermal conduction and radiation in the contact interface for forming application Fcond and Dcond
/INTER/TYPE24 - Added Nitsche’s method contact stiffness options added to I_stf
/INTER/TYPE25 - Added Edge to Edge contact options, I_edge and Edge_angle
/MAT/LAW11 (BOUND) - Unit system compatibility
/MAT/LAW44 (COWPER) - can be assigned to beam element /PROP/TYPE3, /PROP/TYPE18 and truss element /PROP/TRUSS
/MONVOL/FVMBAG1 - Added new tetrahedron mesher when using kmesh = 12 or 14
/MONVOL/PRES - New pressure function options Itypefun
/PROP/TYPE6 (SOL_ORTH), /PROP/TYPE14 (SOLID) , /PROP/TYPE20 (TSHELL), /PROP/TYPE21 (TSH_ORTH) and /PROP/TYPE22 (TSH_COMP) - Removed I_strain, new options for I_cpre, I_frame, and I_smstr
/SPRING - Added option to input local coordindate system for each element for /PROP/TYPE23 and /MAT/LAW108

New Engine Keywords

/H3D/SOLID/TENS/STRAIN_ENG - New engineering total strain tensor output for solid elements
/H3D/SHELL/TENS/STRAIN_ENG - New engineering total strain tensor output for shell elements
/H3D/SOLID/TENS/STRAIN/OUTER - New output strain tensor on the external skin of the solid part
/H3D/SOLID/TENS/STRESS/OUTER - New output stress tensor on the external skin of the solid part
/H3D/SOLID/FLDZ/OUTER - FLD failure zone factor are extended to the outer surface of the thick-shell and solid element
/H3D/SOLID/FLDF/OUTER - FLD damage factor indicator are extended to the outer surface of the thick-shell and solid element

LS-DYNA Keywords