PERFORM A SERIES OF CHECKS TO AUTO CLEAN A CURVE FOR USE BY MATERIAL LAWS¶
Automatically cleans a raw curve for use in material law definitions by applying a configurable pipeline of digitization, x-monotonicity enforcement, and regression smoothing. Use this worker to prepare experimental stress-strain or force-displacement curves before feeding them into material calibration or parameter-fitting workflows.
When to use¶
Classification: process.
Tagged: auto_clean, curve_cleaning, digitize, material_law, monotonic, preprocessing, regression_smooth, transformations.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Curve 1 | curve1 | vector | — | Input curve to be cleaned (e.g., a raw experimental stress-strain or force-displacement vector); accepts any XY vector pair. | |
| Digitize Points | digitize_points | scalar | 100 | Number of evenly-spaced points to re-sample the curve to after cleaning; default is 100 — increase for higher resolution or decrease to reduce noise sensitivity. | |
| X Monotonic | x_monotonic | scalar | yes | Whether to enforce strictly increasing x-values by removing or collapsing duplicate/reversed x entries; set to ‘yes’ (default) for material laws that require monotonic strain axes. | |
| Regression Smooth | regression_smooth | scalar | yes | Whether to apply regression-based smoothing to the curve; set to ‘yes’ (default) to reduce high-frequency noise before material parameter fitting. | |
| Regression Smooth Percentage | regression_smooth_percentage | scalar | 1 | Bandwidth for the regression smoother expressed as a percentage of the total curve length (options: 0.1–10.0); default is 1.0 — larger values produce a smoother but less detailed curve. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| curve_auto_clean_output_1 | curve_auto_clean_output_1 | vector | Cleaned and re-sampled XY curve vector ready for use in material law definitions or downstream calibration workers. |
Disciplines¶
- data.curve.transform
- engineering.material.calibration
- engineering.material.characterization
Runnable example¶
A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: /api/workflow/example?id=curve_auto_clean
Auto-generated from transformation schema. Worker id: curve_auto_clean. Schema hash: 6a6d04c8ebab. Hand-curated docs in workerexamples/ override this page when present.