ENGINEERING STRESS VS STRAIN CURVES TO TRUE STRESS VS STRAIN CURVE USING CONSTANT VOLUME ASSUMPTION¶
Converts engineering stress–strain curves to true stress–strain curves using the constant-volume (Cauchy) assumption. Supports tension, compression, and anisotropic tension loading; an optional Poisson’s ratio can be supplied to account for volumetric compressibility.
When to use¶
Classification: process.
Tagged: anisotropic, cauchy, compression, constant_volume, engineering_stress, engtotruestress, material_conversion, poissons_ratio.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Engineering Stress Strain Curves | engineeringstressstraincurves | vector | — | One or more engineering stress–strain curves (stress in force/area units, strain dimensionless) to be converted; supply at least one curve for isotropic tension or compression loading. | |
| Axis | axis | text | both | Which axis/axes to transform: ‘x’ (strain only), ‘y’ (stress only), or ‘both’ (default); leave as ‘both’ for a full engineering-to-true conversion. | |
| Poissons Ratio | poissons_ratio | scalar | 0.0 | Poisson’s ratio (dimensionless, default 0.0) used to account for volumetric compressibility; set to 0.0 to enforce the strict constant-volume (incompressible) assumption. | |
| Loading Type | loading_type | string | tension | Loading mode: ‘tension’ (default), ‘compression’, or ‘tension_anisotropic’; select ‘tension_anisotropic’ when transversal and thickness strain curves are available for anisotropic materials. | |
| Eng Stress Vs Transversal Strain | eng_ss_vs_transversal_strain | vector | — | Engineering stress expressed as a function of transversal strain (required only when loading_type is ‘tension_anisotropic’); leave unset for isotropic tension or compression. | |
| Eng Stress Vs Thickness Strain | eng_ss_vs_thickness_strain | vector | — | Eng stress provided as function of thickness strain <a class=’btn btn-xs btn-default’ target=’_blank’ href=’https://www.d3view.com/docs/master/workflows/Glossary.html#curveinput’> <i class=’fa fa-external-link’> </i> View more </a> |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| curves_engtotruestress_output_1 | curves_engtotruestress_output_1 | vector | Converted true stress–strain curve(s) corresponding to the input engineering curves, with axes transformed according to the selected axis and loading-type settings. |
Disciplines¶
- data.curve.transform
- 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=curves_engtotruestress
Auto-generated from transformation schema. Worker id: curves_engtotruestress. Schema hash: 95bb0d8ed629. Hand-curated docs in workerexamples/ override this page when present.