MATERIAL SPECIMEN GENERATOR FOR SINGLE SHELL¶
Generates a single shell element LS-DYNA input deck for uniaxial material coupon testing. Use this worker to author a minimal single-element specimen keyword file with configurable element formulation, mass scaling, and boundary-condition loading type prior to a material calibration solve.
When to use¶
Classification: data.
Tagged: LS-DYNA, VAD, elform, keyword, load_curve, mass_scaling, mat_calibration, shell.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Type | type | string | uniaxial | Specimen test type to generate; currently only ‘uniaxial’ is supported — leave at default unless additional specimen types become available. | |
| Elform | elform | scalar | 16 | LS-DYNA shell element formulation integer (e.g. 16 = fully-integrated shell); must match the formulation intended for the production model being calibrated. | |
| Mass-Scaled Time Step | mass-scaled_time_step | scalar | 0 | Target mass-scaling time step (seconds) applied via *CONTROL_TIMESTEP; set to 0 (default) to disable mass scaling and use physical time stepping. | |
| V-A-D | velocity-acceleration-displacement | scalar | 2 | VAD flag controlling whether the prescribed boundary motion is defined as velocity (1), acceleration (0), or displacement (2, default); must match the intended *BOUNDARY_PRESCRIBED_MOTION load-curve type. | |
| Loading Input | loading_input_type | scalar | constant | Specifies whether the boundary loading magnitude is a single constant value (‘constant’, default) or taken from a user-supplied time–value curve (‘curve’). | |
| Displacement Or Velocity Or Acceleration Value | displacementor_velocityor_acceleration_value | scalar | 25 | Scalar magnitude (mm, mm/s, or mm/s² depending on VAD selection) of the applied boundary condition when loading_input_type is ‘constant’; ignored when a curve is supplied. | |
| Element Length | element_length | scalar | 10.0 | Element Length | |
| 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 | 1 | ||
| Material Data | material_data | text | *MAT_ELASTIC 1,7.89e-9,210.0,0.3 | Material Card | |
| IRATE | irat_e | scalar | 0 | ||
| 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 | ||
| Additional Keywords | additionalkeywords | text | *END | Add additional keywords |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| Single Shell Element | single_shell_element | text | LS-DYNA keyword text file (.k) defining the fully parameterised single shell element coupon model, ready for direct solver submission or downstream material calibration workers. |
Disciplines¶
- cae.preprocessing.deck_authoring
- engineering.material.specimen
Auto-generated from transformation schema. Worker id: material_specimen_generator_single_shell_element. Schema hash: 38477aa7c72c. Hand-curated docs in workerexamples/ override this page when present.