MATERIAL SPECIMEN GENERATOR — 4ENF MODE II FRACTURE COUPON¶
Generates an LS-DYNA 4ENF (4-point End-Notched Flexure) Mode II fracture coupon for adhesive Mode II calibration. The two material parameters SHRMAX and GCSHR are exposed as inputs so calibration sweeps can vary them without re-shipping the keyword deck. The rest of the deck is fixed.
When to use¶
Classification: data.
Tagged: adhesive, calibration, fracture, keyword, ls-dyna, mat_169, mat_arup_adhesive, mode_ii.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Element Formulation | elform | scalar | 1 | Solid element formulation for the primary adherend section (*SECTION_SOLID secid=1). Exposed as IELFORM in *PARAMETER (referenced as &ELFORM). Default 1 (constant-stress). The cohesive adhesive section is left unchanged. | |
| Duration | duration | scalar | 100.0 | Termination time (*CONTROL_TERMINATION endtim). Exposed as RETERM in *PARAMETER (referenced as &ETERM). | |
| Force Multiplier | force_multiplier | scalar | 1.0 | Scale factor for force output / load curve referencing (exposed as RFMULT in *PARAMETER, referenceable as &FMULT). Default 1.0. | |
| Material Data (Full *MAT Card Override) | material_data | textarea | — | Optional. When set, the entire *MAT_ARUP_ADHESIVE block is replaced verbatim with this text. Use to swap in a custom MAT card without editing the template. | |
| Additional Keywords | additional_keywords | textarea | — | Optional free-text LS-DYNA keywords appended after the deck and before *END. | |
| Title | title | scalar | Sample 4ENF Mode II coupon | Text that appears in the *TITLE block at the top of the generated keyword deck. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| material_specimen_generator_4enf_output_1 | material_specimen_generator_4enf_output_1 | text | Generated LS-DYNA keyword text for a 4ENF Mode II fracture coupon with the supplied shear-strength + Mode II fracture-energy parameters baked into the *PARAMETER block. |
Disciplines¶
- cae.preprocessing.deck_authoring
- engineering.material.library
- engineering.material.specimen
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