.. _auto_curve_effective_remove_localization:

*UPDATE TO REMOVE LOCALIZATION*
===============================

Detects the onset of strain localization by comparing an input (reference) effective-stress curve against an output (simulation) effective-stress curve using a configurable ratio threshold, then extends the input curve beyond the localization point via iso-parametric scaling. Use this worker in material-calibration workflows to produce a physically consistent stress–strain curve that accounts for post-necking localization behaviour.

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

Classification: **process**.

Tagged: ``curve_update``, ``effective_stress``, ``iso-parametric_scaling``, ``localization``, ``material_calibration``, ``necking``, ``stress_strain``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Input Effective Stress
     - input_effective_stress
     - vector
     - —
     - 
     - Reference effective stress–strain curve (e.g. from a physical test or baseline simulation) used as the baseline to detect where localization begins; supplied as a unitless y-vs-x vector.
   * - Output Effective Stress
     - output_effective_stress
     - vector
     - —
     - 
     - Simulation-derived effective stress–strain curve compared point-by-point against the reference curve to identify the localization onset; supplied as a unitless y-vs-x vector.
   * - Ratio to detect Localization
     - ratio
     - scalar
     - 0.05
     - 
     - Dimensionless threshold ratio (default 0.05): localization is flagged at the first point where /input_y − output_y/ > ratio × input_y; increase to tolerate larger divergence before flagging.
   * - Scale Factor
     - sf
     - scalar
     - 2.0
     - 
     - Y-axis iso-parametric scale factor applied to the input curve from the localization point onward (default 2.0); controls how steeply the extended curve rises in the post-localization regime.
   * - X-Scale Factor
     - xsf
     - scalar
     - 1.0
     - 
     - X-axis iso-parametric scale factor applied to the input curve from the localization point onward (default 1.0, i.e. no X stretching); increase to widen the post-localization strain range.

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - updated_curve
     - updated_curve
     - vector
     - Updated effective stress–strain vector with the pre-localization segment taken from the reference curve and the post-localization segment extended via iso-parametric scaling, ready for downstream material-card fitting.

Disciplines
-----------

- data.curve.transform
- engineering.material.calibration
- engineering.material.characterization
- engineering.material.failure

Runnable example
----------------

A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: `/api/workflow/example?id=curve_effective_remove_localization <https://www.d3view.com/api/workflow/example?id=curve_effective_remove_localization>`_

.. raw:: html

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   Auto-generated from <code>transformation</code> schema. Worker id: <code>curve_effective_remove_localization</code>. Schema hash: <code>e8d86656a419</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>