CONE-PUSH SPECIMEN GENERATOR¶
Generates a parameterized LS-DYNA cone-push specimen deck for sheet-metal puncture/shear testing. Given a specimen geometry variant and key mesh parameters (thickness, element formulation, integration points), it outputs a ready-to-run keyword file. Use this worker to programmatically author cone-push coupon simulations within a material characterization workflow.
When to use¶
Classification: data.
Tagged: cone_push, coupon, elform, keyword_deck, ls-dyna, material_characterization, nip, sheet_metal.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Choose Specimen Type | type | string | cone_push_20hole_90outer_1mm | Selects the cone-push specimen geometry variant (e.g., 20-hole 90° outer 1 mm mesh, OSU small cone 14 mm dia 1 mm mesh, or OSU small cone 14 mm dia 2.5 mm mesh); defaults to ‘cone_push_20hole_90outer_1mm’. | |
| Specimen Thickness | specimen_thickness | scalar | 1 | Sheet-metal specimen thickness in mm matching the physical test coupon; defaults to 1 mm. | |
| Cone Thickness | cone_thickness | scalar | 0.5 | Thickness of the cone tool/indenter shell elements in mm as used in the test setup; defaults to 0.5 mm. | |
| Specimen Elform | elform | scalar | 16 | LS-DYNA shell element formulation (ELFORM) for the specimen mesh — e.g., 16 for fully integrated shell; defaults to 16. | |
| Specimen NIP | ni_p | scalar | 5 | Number of through-thickness integration points (NIP) for the shell elements; defaults to 5. | |
| Membrane Thinning | membrane_thinning | scalar | 0 | LS-DYNA *CONTROL_SHELL ISTUPD flag controlling membrane thinning (0 = off, 1 = on); defaults to 0. | |
| Duration | duration | scalar | 100 | Simulation termination time in milliseconds for the cone-push load event; leave at default unless the test displacement rate requires adjustment. | |
| Mass-Scaled Time Step | mass-scaled_time_step | scalar | 0 | Mass scaling time step | |
| Loading Type | vad | scalar | 2 | Velocity-Acceleration-Displacement Load Curve Type | |
| Loading Input | loading_input_type | scalar | constant | Load Curve is constant or varying based on Curve | |
| Loading Value | loadingvalue | scalar | -25 | Value based on loading type chosen. If strain-rate, you can provide the elongation to enforce below | |
| Binary Output Frequency | dtbi_n | scalar | 1 | D3PLOT frequency | |
| ASCII Output Frequency | ascii_output_frequency | scalar | 0.1 | ||
| Specimen Material ID | specimen_mid | scalar | — | Material ID that matches with the material data specified in the next field | |
| Material Data | material_data | text | — | Material Card | |
| Specimen Nofail Mid | specimen_nofail_mid | scalar | — | The constrained material with different properties can be specified here | |
| Spec Nofail Material Data | spec_nofail_material_data | text | — | No failure material card can be specified | |
| 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 | ||
| Hxsf | hxsf | scalar | 1 | Default hole size is 20mm. You can scale this using this scale factor. Please note the mesh length will change so this factor is assumed to be small to match the tolerances in the test | |
| Outer diameter | odxsf | scalar | 1 | Default Outer diameter size is 90mm. You can scale this using this scale factor. Please note the mesh length will change so this factor is assumed to be small to match the tolerances in the test | |
| Additional Keywords | additionalkeywords | text | *COMMENT | Add additional keywords (Optional) |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| material_specimen_generator_uniaxial_output_1 | material_specimen_generator_uniaxial_output_1 | text | LS-DYNA keyword (.k) deck file containing the fully parameterized cone-push specimen mesh, section, and control cards, ready for solver submission. |
Disciplines¶
- cae.preprocessing.deck_authoring
- engineering.material.characterization
- engineering.material.specimen
Auto-generated from transformation schema. Worker id: material_specimen_generator_cone_push. Schema hash: 6baae6bd49a6. Hand-curated docs in workerexamples/ override this page when present.