MATERIAL SPECIMEN GENERATOR¶
Generates parametric notch specimen LS-DYNA decks for material characterization testing, supporting 3D-tetra and shell element formulations across a range of notch radii, gauge widths, and mesh sizes. Select the desired specimen geometry and mesh parameters to produce a ready-to-run keyword file. Use this worker when setting up notch-tension coupon simulations for GISSMO or failure-surface calibration workflows.
When to use¶
Classification: data.
Tagged: coupon, gissmo, keyword, lsdyna, material_calibration, mesh, notch, notch_tension.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Type | type | string | E8_shell_regular_3mm | Notch specimen geometry to generate; choose from the dropdown of 3D-tetra (solid) and shell variants parameterised by notch radius (R), gauge half-width (a), and element size (mm) — default ‘E8_shell_regular_3mm’ is a standard uniaxial shell coupon. | |
| Thickness | thickness | scalar | 1 | Shell element thickness in mm applied to shell-based specimens; ignored for 3D-tetra variants — default is 1 mm. | |
| Elform | elform | scalar | 16 | LS-DYNA element formulation ID (ELFORM keyword field) for the generated elements, e.g. 16 for fully-integrated shell; default is 16. | |
| 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 | |
| V-A-D | velocity-acceleration-displacement | scalar | 2 | VAD Load Curve Type | |
| Loading Input | loading_input_type | scalar | constant | Load Curve is constant or varying based on Curve | |
| Displacement Or Velocity Or Acceleration Value | displacementor_velocityor_acceleration_value | scalar | 25 | Displacement Final value | |
| Duration | duration | scalar | 100 | CONTROL_TERMINATION | |
| 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 | ||
| ILIMIT | ilimi_t | scalar | 10 | ||
| MAXREF | maxre_f | scalar | 15 | ||
| IACC | iac_c | list | 0 | ||
| Grip Size 0-Default | grip_size0-default | scalar | 0 | Grip to grip distance | |
| Additional Keywords | additionalkeywords | text | — | Add additional keywords (Optional) | |
| Gage Width | gagewidth | scalar | 7.82 | Gage width |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| material_specimen_generator_notch_output_1 | material_specimen_generator_notch_output_1 | text | LS-DYNA keyword (.k) deck text defining the notch specimen mesh, section, and boundary conditions, ready for solver submission or downstream material-calibration workflows. |
Disciplines¶
- cae.preprocessing.deck_authoring
- engineering.material.calibration
- engineering.material.failure
- engineering.material.specimen
Auto-generated from transformation schema. Worker id: material_specimen_generator_notch. Schema hash: cce1d1095fbd. Hand-curated docs in workerexamples/ override this page when present.