.. _auto_curve_torsion_to_uniaxial:

*CONVERTS THE TORSIONAL STRESS VS SHEAR STRAIN TO UNI-AXIAL STRESS VS EFFECTIVE STRAIN*
=======================================================================================

Converts a torsional engineering stress vs. shear strain curve into a uniaxial true stress vs. effective (von Mises) strain curve using standard torsion-to-uniaxial transformation factors (√3 for stress, 1/√3 for strain). Use this worker when torsional test data must be expressed in the uniaxial convention required by material cards such as MAT_24.

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

Classification: **process**.

Tagged: ``curve_transform``, ``effective_strain``, ``mat_24``, ``shear_strain``, ``stress_strain``, ``torsion``, ``uniaxial``, ``von_mises``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Torsional Eng Stress Strain Curve
     - torsional_eng_stress_strain_curve
     - vector
     - —
     - 
     - Torsional engineering stress (MPa) vs. engineering shear strain (mm/mm) curve obtained from a torsion test; provide as a two-column vector [shear_strain, torsional_stress]. Optional — if omitted the worker returns no output.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - curve_torsion_to_uniaxial_output_1
     - curve_torsion_to_uniaxial_output_1
     - vector
     - Converted uniaxial (effective) stress vs. effective strain curve as a two-column vector [effective_strain, uniaxial_stress (MPa)], ready for direct use in a material stress-strain card (e.g. MAT_24).

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

.. 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_torsion_to_uniaxial</code>. Schema hash: <code>c4f645aec814</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>