.. _auto_curve_true_to_effective_simple:

*SCALE Y VALUES*
================

Converts a true stress–strain curve to an effective (plastic) stress–strain curve by subtracting the elastic strain component using the supplied Young's modulus. Use this worker when preparing material input curves for LS-DYNA MAT_24 or similar elasto-plastic material cards that require effective plastic strain on the X-axis.

When to use
-----------

Classification: **process**.

Tagged: ``"``, ``2``, ``4``, ``A``, ``M``, ``T``, ``_``, ``a``.

Inputs
------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20 20 20

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - True Stress Vs Strain Curve
     - base_curve
     - vector
     - —
     - 
     - True stress vs. total strain curve (vector of [strain, stress] pairs, stress in MPa); this is the raw experimental or processed curve before elastic-strain removal.
   * - Modulus
     - modulus
     - text
     - 210
     - 
     - Young's modulus in GPa used to subtract the elastic strain component (default 210 GPa for steel); override for non-ferrous materials.

Outputs
-------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20

   * - Label
     - ID
     - Type
     - Description
   * - Effective Stress vs Strain Curve
     - curve_scale_up_output_1
     - vector
     - Effective (plastic) stress vs. plastic strain curve produced by removing the elastic strain (σ/E) from each total-strain value; ready for direct use in elasto-plastic material definitions such as LS-DYNA MAT_24.

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_true_to_effective_simple <https://www.d3view.com/api/workflow/example?id=curve_true_to_effective_simple>`_

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>curve_true_to_effective_simple</code>. Schema hash: <code>ce06faa04406</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>