UNIAXIAL MATERIAL SPECIMEN GENERATOR¶
Generates a ready-to-run LS-DYNA uniaxial tensile specimen keyword deck (.k) for a selected ASTM E8 coupon geometry and mesh size. Choose from standard, large, or custom-dimension shell configurations spanning element sizes from 0.25 mm to 6 mm. Use this worker to produce the simulation input file before running a material characterization or calibration workflow.
When to use¶
Classification: data.
Tagged: ASTM_E8, E8, LS-DYNA, coupon, keyword, mat_24, material_testing, mesh.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Choose Specimen Type | type | string | E8_shell_standard_1mm | Select Specimen from the list | |
| Thickness | thickness | scalar | 1 | Shell Thickness | |
| Elform | elform | scalar | 16 | Element Formulation | |
| NIP | ni_p | scalar | 3 | Number of Integration Points | |
| Mass-Scaled Time Step | mass-scaled_time_step | scalar | 0 | Mass scaling time step | |
| Membrane Thinning | membrane_thinning | scalar | 0 | *CONTROL_SHELL ISTUPD parameter | |
| Loading Type | vad | scalar | 2 | Velocity, Acceleration, Displacement or Strain-rate loading type | |
| Loading Input | loading_input_type | scalar | constant | Load Curve is constant or varying based on Curve | |
| Loading value based on type | loading_value | scalar | 25 | Loading input based on type | |
| Total Simulation Duration | duration | scalar | 100 | When strain-rate loading is chosen, the duration will be updated based on elongation desired | |
| Binary Output Frequency | binary_output_frequency | scalar | 1 | ||
| ASCII Output Frequency | ascii_output_frequency | scalar | 0.1 | ||
| Material ID | material_i_d | scalar | — | ||
| Material Data | material_data | text | — | Material Card | |
| IMFLAG | imfla_g | scalar | 0 | ||
| IMASS | imas_s | scalar | 0 | ||
| DT0 | d_t0 | scalar | 0.1 | DTO | |
| ILIMIT | ilimi_t | scalar | 10 | ||
| MAXREF | maxre_f | scalar | 15 | ||
| IACC | iac_c | list | 0 | ||
| GS0TE | grip_size0-endto_end | scalar | 0 | Grip to grip distance | |
| Additional Keywords | additionalkeywords | text | *COMMENT | Add additional keywords (Optional) | |
| Gage Width | gagewidth | scalar | 0 | If zero, default will be used based on the specimen type | |
| Gage Length | gagelength | scalar | 0 | If zero, default will be used based on the specimen type | |
| Extensometer Length | extensometerlength | scalar | 0 | If Zero, default value will be used based on the specimen type | |
| Lcint | lcint | scalar | 100 | Number of points to use for curve digitization | |
| Custom Specimen | custom | textarea | — | Custom specimen using a PHP-Smarty Template | |
| Strain-rate Base Length | strain_rate_base_length | list | extensometer | ||
| Elongation to enforce when strain-rate is provided | sr_elongation | text | 0.0 | When this is zero, simulation is run until the gage length elongation is achieved | |
| QS Strain-rate Upper Limit | qs_sr | text | 0.0 | When the specified strain-rate is lower than this, a scale factor can be specified below to scale the velocity | |
| QS Velocity Scale factor | qs_vel_sf | text | 1.0 | Velocity scale factor to use when the specified strain-rate is equal to or lower than the quasi-static strain-rate |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| material_specimen_generator_uniaxial_output_1 | material_specimen_generator_uniaxial_output_1 | text | LS-DYNA keyword file (.k) defining the full uniaxial tensile specimen mesh, boundary conditions, and control cards, ready for direct solver submission or downstream material calibration. |
Disciplines¶
- cae.preprocessing.deck_authoring
- engineering.material.specimen
Auto-generated from transformation schema. Worker id: material_specimen_generator_uniaxial. Schema hash: 53ef073ae817. Hand-curated docs in workerexamples/ override this page when present.