EFFECTIVE TO TRUE OR ENG (SINGLE KNOB)¶
Converts an effective stress-strain curve to either true or engineering stress-strain in a single node. Select ‘true’ (default) to apply epsilon_true = epsilon_eff + sigma_eff/E, or ‘eng’ to chain through the standard true→engineering relations. Eliminates the need to wire two separate conversion workers when the destination format is data-driven.
When to use¶
Classification: process.
Tagged: conversion, curve, eff_to_eng, eff_to_true, effective, engineering, material, single-knob.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Effective Stress Vs Strain Curve | effective_stress_strain_curve | vector | — | Input effective stress-strain curve (vector of strain–stress pairs) to be converted; must cover the plastic range of interest. | |
| Modulus | modulus | scalar | 210 | Young’s modulus E (GPa, default 210) used in the effective→true relation epsilon_true = epsilon_eff + sigma_eff/E; adjust for non-steel materials. | |
| Yield Offset | yield_offset | scalar | 0 | Strain offset applied at the yield point before conversion (dimensionless, default 0); leave at 0 unless the input curve requires a manual shift. | |
| Output Type | output_type | select | true | Destination curve format: ‘true’ (default) outputs true stress-strain directly; ‘eng’ chains the conversion through true→engineering relations. | |
| Poisson’s Ratio | poisson’s_ratio | scalar | 0 | Poisson’s ratio (dimensionless, default 0) forwarded to the true→engineering conversion; only active when Output Type = ‘eng’. | |
| Tension/Compression Flag | tension/compression_flag | select | tension | Specifies the loading direction (‘tension’ default or ‘compression’) for the true→engineering step; only active when Output Type = ‘eng’. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| curve_eff_to_true_or_eng_output_1 | curve_eff_to_true_or_eng_output_1 | vector | Converted stress-strain curve (vector) in the format selected by Output Type — true stress-strain or engineering stress-strain, in the same units as the input curve. |
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=curve_eff_to_true_or_eng
Auto-generated from transformation schema. Worker id: curve_eff_to_true_or_eng. Schema hash: ada62db6f1a5. Hand-curated docs in workerexamples/ override this page when present.