PARSES LS-DYNA KEYWORD INPUT TO GET SHEAR SPECIMEN INFORMATION¶
Parses an LS-DYNA keyword input file to extract geometric and mesh information for a shear specimen, including part ID, extensometer nodes, width nodes, and length nodes. Use this worker to prepare shear-specimen metadata required for downstream material characterization or calibration workflows.
When to use¶
Tagged: keyword_parse, lsdyna, node_extraction, part_id, shear_specimen, specimen_geometry.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| LS-DYNA Keyword File | file_input | file | — | ✓ | LS-DYNA keyword (.k / .key) input file containing the mesh, part, and node definitions from which shear specimen information will be extracted. |
| Specimen PID | specimen_pid | scalar | 1 | ✓ | Part ID (PID) of the shear specimen in the LS-DYNA model; identifies which *PART block corresponds to the gauge region (default: 1). |
| Extensometer Node 1 | ext_node_1 | scalar | 1 | ✓ | Node ID of the first extensometer attachment point used to measure gauge-length displacement (default: 1). |
| Extensometer Node 2 | ext_node_2 | scalar | 2 | ✓ | Node ID of the second extensometer attachment point; paired with ext_node_1 to compute the virtual extensometer span (default: 2). |
| Width Node 1 | width_node_1 | scalar | 3 | ✓ | Node ID of the first transverse reference point used to determine the specimen width in the gauge section (default: 3). |
| Width Node 2 | width_node_2 | scalar | 4 | ✓ | Node ID of the second transverse reference point; paired with width_node_1 to compute initial gauge width (default: 4). |
| Length Node 1 | length_node_1 | scalar | 5 | ✓ | Node ID of the first longitudinal reference point used to determine the specimen gauge length (default: 5). |
| Length Node 2 | length_node_2 | scalar | 6 | ✓ | Node ID of the second longitudinal reference point; paired with length_node_1 to compute initial gauge length (default: 6). |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| Shear Specimen Info | shear_specimen_info | keyvalue | Key-value map containing parsed shear specimen metadata — including part ID, node IDs, and derived initial geometric dimensions (gauge length, width, extensometer span) — for use in downstream characterization or calibration workers. |
Disciplines¶
- cae.postprocessing.extraction
- cae.preprocessing.setup
- engineering.material.specimen
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