CREATE A MAT_224¶
Generates an LS-DYNA MAT_224 (Tabulated Johnson-Cook) keyword block from user-supplied material parameters and curve/table references. Use this worker to programmatically author rate- and temperature-dependent plasticity cards for crash and impact simulations.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Material Name | material_name | scalar | — | String label assigned to the MAT_224 card (e.g. ‘DP980_MAT224’); purely informational and written into the keyword header. | |
| Material ID | material_i_d | scalar | — | Integer LS-DYNA material ID (*MAT MID field); must be unique within the deck — leave null to let the workflow assign one automatically. | |
| Starting Table ID | starting_table_i_d | scalar | — | Integer ID of the first *DEFINE_TABLE entry referenced by the card; subsequent tables are numbered incrementally from this value. | |
| Starting Curve Id | starting_curve_id | scalar | — | Integer ID of the first *DEFINE_CURVE entry referenced by the card; subsequent curves are numbered incrementally from this value. | |
| Density | density | scalar | — | Mass density of the material (RO field, units consistent with model — typically tonne/mm³ or kg/m³); required for valid dynamic simulations. | |
| Elastic Modulus | elastic_modulus | scalar | — | Young’s modulus (E field, units consistent with model — e.g. GPa or MPa); governs the elastic response before yielding. | |
| Poissons Ratio | poissons_ratio | scalar | — | Poisson’s ratio (PR field, dimensionless, typically 0.28–0.30 for steels); controls lateral strain during elastic deformation. | |
| CP | c_p | scalar | — | Specific heat capacity (CP field, energy per unit mass per degree — e.g. mJ/(tonne·K)); required when thermal softening tables are used. | |
| TR | t_r | scalar | — | Room / reference temperature (TR field, in model temperature units, e.g. K or °C); sets the baseline for Johnson-Cook thermal softening. | |
| BETA | bet_a | scalar | — | ||
| NUMINT | numin_t | scalar | — | ||
| LCK1 | lc_k1 | vector | — | LCK1 <a class=’btn btn-xs btn-default’ target=’_blank’ href=’https://www.d3view.com/docs/master/workflows/Glossary.html#curveinput’> <i class=’fa fa-external-link’> </i> View more </a> | |
| Strain Rates | strain_rates | scalar | — | ||
| NDIG | ndi_g | scalar | 200 |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| dynakeyword_mat224_output_1 | dynakeyword_mat224_output_1 | text | Plain-text LS-DYNA keyword block containing the fully assembled *MAT_224 card (and any companion *DEFINE_TABLE / *DEFINE_CURVE entries), ready to be included or appended to a simulation deck. |
Disciplines¶
- cae.preprocessing.deck_authoring
- engineering.crash.dynamics
- engineering.material.calibration
- engineering.material.library
Auto-generated from transformation schema. Worker id: dynakeyword_mat224. Schema hash: 5b905fd6c041. Hand-curated docs in workerexamples/ override this page when present.