PREPARE A QUASI-STATIC FRACTURE-SPECIMEN DECK¶
Make a generated LS-DYNA fracture-specimen deck run-ready for quasi-static characterization: de-collide duplicate *SET_NODE ids (a preset defect that error-terminates LS-DYNA), inject a *DATABASE_HISTORY_*_SET so elout captures the gauge, and optionally inject *CONTROL_IMPLICIT_AUTO to cap the time step so the loading path is resolved across many states.
When to use¶
Classification: data.
Tagged: LS-DYNA, deck_authoring, keyword, fracture, specimen, quasi_static, implicit, elout.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Specimen Deck | deck | text | — | ✓ | Raw LS-DYNA specimen deck (the generator preset output) to make run-ready for quasi-static fracture characterization. |
| History Kind | history_kind | scalar | solid | ‘solid’ or ‘shell’ – selects *SET_SOLID_GENERAL/ALL vs *SET_SHELL_GENERAL/PART for the injected *DATABASE_HISTORY card so elout captures the gauge. | |
| Set ID | set_id | scalar | 991 | Set id used for the injected *SET_*_GENERAL + *DATABASE_HISTORY_*_SET pair. | |
| Part ID | part_id | scalar | 1 | Part id for the shell gauge selector (*SET_SHELL_GENERAL PART). Ignored for solids (which use ALL). | |
| Inject Implicit Auto | inject_implicit | scalar | yes | ‘yes’ injects *CONTROL_IMPLICIT_AUTO capping the time step so the quasi-static solve writes many states; ‘no’ leaves stepping to the deck. | |
| Implicit DT Max | implicit_dt_max | scalar | 1.0 | DTMAX cap for *CONTROL_IMPLICIT_AUTO (= duration / target states). Only used when inject_implicit=’yes’. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| dynakeyword_prepare_quasistatic_specimen_output_1 | dynakeyword_prepare_quasistatic_specimen_output_1 | text | The run-ready deck: duplicate *SET_NODE ids de-collided, a *DATABASE_HISTORY_*_SET injected so elout captures the gauge, and (optionally) *CONTROL_IMPLICIT_AUTO injected to resolve the stress-triaxiality path. |
Disciplines¶
- cae.preprocessing.deck_authoring
- engineering.crash.dynamics
- engineering.material.calibration
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