UPDATE TO REMOVE LOCALIZATION¶
Detects the onset of strain localization by comparing an input (reference) effective-stress curve against an output (simulation) effective-stress curve using a configurable ratio threshold, then extends the input curve beyond the localization point via iso-parametric scaling. Use this worker in material-calibration workflows to produce a physically consistent stress–strain curve that accounts for post-necking localization behaviour.
When to use¶
Classification: process.
Tagged: curve_update, effective_stress, iso-parametric_scaling, localization, material_calibration, necking, stress_strain.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Input Effective Stress | input_effective_stress | vector | — | Reference effective stress–strain curve (e.g. from a physical test or baseline simulation) used as the baseline to detect where localization begins; supplied as a unitless y-vs-x vector. | |
| Output Effective Stress | output_effective_stress | vector | — | Simulation-derived effective stress–strain curve compared point-by-point against the reference curve to identify the localization onset; supplied as a unitless y-vs-x vector. | |
| Ratio to detect Localization | ratio | scalar | 0.05 | Dimensionless threshold ratio (default 0.05): localization is flagged at the first point where /input_y − output_y/ > ratio × input_y; increase to tolerate larger divergence before flagging. | |
| Scale Factor | sf | scalar | 2.0 | Y-axis iso-parametric scale factor applied to the input curve from the localization point onward (default 2.0); controls how steeply the extended curve rises in the post-localization regime. | |
| X-Scale Factor | xsf | scalar | 1.0 | X-axis iso-parametric scale factor applied to the input curve from the localization point onward (default 1.0, i.e. no X stretching); increase to widen the post-localization strain range. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| updated_curve | updated_curve | vector | Updated effective stress–strain vector with the pre-localization segment taken from the reference curve and the post-localization segment extended via iso-parametric scaling, ready for downstream material-card fitting. |
Disciplines¶
- data.curve.transform
- engineering.material.calibration
- engineering.material.characterization
- engineering.material.failure
Runnable example¶
A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: /api/workflow/example?id=curve_effective_remove_localization
Auto-generated from transformation schema. Worker id: curve_effective_remove_localization. Schema hash: e8d86656a419. Hand-curated docs in workerexamples/ override this page when present.