MATERIAL SPECIMEN GENERATOR FOR BALL IMAPCT¶
Generates an LS-DYNA ball-impact material specimen deck by configuring element formulation, mass scaling, load-curve type, and boundary kinematics. Use this worker to produce ready-to-run keyword files for ball-impact coupon simulations as part of a material characterization or calibration workflow.
When to use¶
Classification: data.
Tagged: ball_impact, coupon, deck_authoring, elform, keyword, load_curve, ls-dyna, mass_scaling.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Elform | elform | scalar | -1 | LS-DYNA element formulation flag for the specimen mesh (e.g. -1 = fully-integrated shell); leave at default -1 unless a specific element type is required by the solver setup. | |
| Mass-Scaled Time Step | mass-scaled_time_step | scalar | 0 | Target time-step size (seconds) for mass scaling; set to 0 (default) to disable mass scaling and use the natural time step of the mesh. | |
| V-A-D | velocity-acceleration-displacement | scalar | 2 | VAD load-curve type selector: 0 = velocity, 1 = acceleration, 2 = displacement (default); controls how the prescribed motion boundary condition is interpreted by LS-DYNA. | |
| Loading Input | loading_input_type | scalar | constant | Specifies whether the loading profile is a single constant value (‘constant’, default) or a time-history curve (‘curve’); drives whether a scalar or vector is expected in the next input. | |
| Displacement Or Velocity Or Acceleration Value | displacementor_velocityor_acceleration_value | scalar | 25 | Prescribed motion magnitude (mm or mm/ms, consistent with model units) when ‘constant’ loading is selected, or a time-history vector of [time, value] pairs when ‘curve’ is selected; default constant value is 25. | |
| Duration | duration | scalar | 100 | Total simulation duration (time units consistent with model); defines the end-time of the ball-impact event in the LS-DYNA keyword deck. | |
| 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 | |
| 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 | — | Add additional keywords (Optional) | |
| Element Length | element_length | scalar | 5 | ||
| Element Type | element_type | scalar | hexa | ||
| Loading Direction | loading_direction | scalar | hexa |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| material_specimen_generator_ball_impact_output_1 | material_specimen_generator_ball_impact_output_1 | text | Path to the generated LS-DYNA keyword (.k) input deck for the ball-impact specimen, ready for solver submission. |
Disciplines¶
- cae.preprocessing.deck_authoring
- cae.preprocessing.setup
- engineering.material.characterization
- engineering.material.specimen
Auto-generated from transformation schema. Worker id: material_specimen_generator_ball_impact. Schema hash: c119002f6d1d. Hand-curated docs in workerexamples/ override this page when present.