Nastran to LS-DYNA Conversion Mapping
Element
| Nastran | LS-DYNA |
|---|---|
| CONM2 | *ELEMENT_MASS or *ELEMENT_INERTA |
| CWELD | Meshless weld (feabsorb, fe realize using HEXA) |
| CDAMP1/CDAMP2 (0 length) |
*ELEMENT_DISCRETE (card edit for ground option check box) |
| PLOTEL | *ELEMENT_PLOTEL |
| RBAR/RBE2/RJOINT | *CONSTRAINED_NODAL_RIGID_BODY |
| RBE3 | *CONSTRAINED_INTERPOLATION |
| CBAR/CBEAM/CROD/CTUBE/CBUSH CELAS1/CELAS2 |
*ELEMENT_BEAM |
| CTRIA3/CTRIAR CQUAD4, CQUADR, CSHEAR CQUAD8, CTRIA6 (Change to 1st order then convert) |
*ELEMENT_SHELL |
| CTETRA4/CHEXA8/CPENTA6 CTETRA10/CHEXA20/CPENTA15 (Change to 1st order then convert) |
*ELEMENT_SOLID |
Properties
| Nastran | LS-DYNA |
|---|---|
| PBAR/PBEAM/PROD (Only single section PBEAM is supported) |
*SECTION_BEAM |
| PBARL/PBEAML/PRODL (ROD, TUBE, BAR) |
*SECTION_BEAM |
| PBUSH | *SECTION_BEAM + *MAT_GENERAL_SPRING_DISCRETE_BEAM |
| PELAS | *SECTION_BEAM + *MAT_1DOF_GENERALIZED_SPRING |
| PDAMP | *SECTION_DESCRETE |
| PSHELL/PSHEAR | *SECTION_SHELL |
| PSOLID | *SECTION_SOLID |
| PCOMP PCOMPG | *PART_COMPOSITE +*ELEMENT_SHELL with angle option; all materials referred in PCOMP, PCOMPG converted to *MAT_ORTHOTROPIC_THERMAL |
Materials
| Nastran | LS-DYNA |
|---|---|
| MAT1 | *MAT_ELASTIC |
| MAT2 | *MAT_PIECEWISE_LINEAR _PLASTICITY |
| MAT4 | *MAT_PIECEWISE_LINEAR _PLASTICITY |
| MAT8 | *MAT_ORTHOTROPIC_ELASTIC |
| MAT9 | *MAT_ANISOTROPIC_ELASTIC |
Coordinate Systems
| Nastran | LS-DYNA |
|---|---|
| CORD1R | *DEFINE_COORDINATE_NODE |
| CORD2R | *DEFINE_COORDINATE_SYSTEM |
Loads
| Nastran | LS-DYNA |
|---|---|
| SPC | *BOUNDARY_SPC |
| FORCE | *LOAD_NODE_POINT |
| MOMENT | *LOAD_NODE_POINT |
| PLOAD4 | *LOAD_SEGMENT |
| TEMP | *INITIAL_TEMP |