TRUE TO ENG¶
Converts an effective (true) stress–strain curve to an engineering stress–strain curve in two steps: effective → true (using elastic modulus and yield offset), then true → engineering (using Poisson’s ratio and tension/compression convention). Use this worker when you need engineering stress–strain data from a von-Mises effective stress curve, e.g. for MAT_24 input preparation.
When to use¶
Classification: process.
Tagged: MAT_24, conversion, curve_transform, effective_stress, engineering_stress, material_characterization, stress_strain, true_stress.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Effective Stress Vs Strain Curve | effectivestressstraincurve | vector | — | Input effective (von-Mises true) stress vs. strain curve as a vector of (strain, stress) pairs; this is the raw true stress–strain data to be converted. | |
| Modulus | slope | scalar | 210 | Elastic (Young’s) modulus in GPa used to separate elastic and plastic strain during the effective-to-true conversion; defaults to 210 GPa (steel). | |
| Yield Offset | offset | scalar | 0.0002 | Yield offset strain used to locate the yield point on the curve during the effective-to-true conversion; defaults to 0.0002 (0.02% offset convention). | |
| Poisson’s Ratio | poissons_ratio | scalar | 0 | Poisson’s ratio applied during the true-to-engineering conversion to account for lateral strain; set to 0 (default) to ignore lateral contraction effects. | |
| Tension/Compression Flag | tension_compression_flag | text | tension | Indicates whether the curve represents a tension or compression test; controls sign convention in the true-to-engineering transformation — select ‘tension’ (default) or ‘compression’. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| curve_efftoengstress_output_1 | curve_effoengstress_output_1 | vector | Resulting engineering stress vs. strain curve as a vector of (strain, stress) pairs, ready for downstream material card authoring or characterization workflows. |
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_efftoengstress
Auto-generated from transformation schema. Worker id: curve_efftoengstress. Schema hash: 80fc0dc4d7a0. Hand-curated docs in workerexamples/ override this page when present.