.. _auto_dynakeyword_mat103_p:

*CREATE A MAT_103P*
===================

Generates an LS-DYNA MAT_103 (*MAT_ANISOTROPIC_VISCOPLASTIC) keyword block from user-supplied elastic/plastic material parameters and a hardening curve. Use this worker to author or inject a MAT_103p card into a simulation deck during preprocessing.

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

Classification: **data**.

Tagged: ``anisotropic_viscoplastic``, ``deck_authoring``, ``keyword``, ``ls-dyna``, ``mat_103``, ``mat_103p``, ``material``.

Inputs
------

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

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Material Name
     - material_name
     - scalar
     - —
     - 
     - Alphanumeric label for the material card (e.g. 'Steel_DP980'); used as the title field in the MAT_103 keyword header. Leave blank to omit a name comment.
   * - Material ID
     - material_i_d
     - scalar
     - —
     - 
     - Integer material ID (MID) that uniquely identifies this card within the LS-DYNA deck; must not conflict with other material IDs in the model.
   * - Curve Id
     - curve_id
     - scalar
     - —
     - 
     - Integer load-curve ID (LCID) referencing the hardening curve already defined in the deck; used when providing the curve by reference rather than inline via the hardening_curve input.
   * - Density
     - density
     - scalar
     - —
     - 
     - Mass density of the material (units consistent with the deck, e.g. kg/mm³ or tonne/mm³); maps to the RO field of MAT_103.
   * - Elastic Modulus
     - elastic_modulus
     - scalar
     - —
     - 
     - Young's modulus / elastic modulus (units consistent with the deck, e.g. MPa or GPa); maps to the E field of MAT_103.
   * - Poissons Ratio
     - poissons_ratio
     - scalar
     - —
     - 
     - Poisson's ratio (dimensionless, typically 0.28–0.33 for metals); maps to the PR field of MAT_103.
   * - Yields Stress
     - yields_stress
     - scalar
     - —
     - 
     - Initial yield stress (same pressure units as elastic_modulus, e.g. MPa); maps to the SIGY field of MAT_103.
   * - Hardening Curve
     - hardening_curve
     - vector
     - —
     - 
     - Inline true-stress vs. effective-plastic-strain hardening curve supplied as a two-column vector (strain / stress); used to define the LCID curve inline when curve_id is not provided.
   * - Number Of Dig Points
     - numberof_dig_points
     - scalar
     - 200
     - 
     - Number of Dig Points
   * - R00
     - r00
     - scalar
     - —
     - 
     - 
   * - R45
     - r45
     - scalar
     - —
     - 
     - 
   * - R90
     - r90
     - scalar
     - —
     - 
     - 
   * - AOPT
     - aop_t
     - scalar
     - —
     - 
     - 
   * - XP
     - x_p
     - scalar
     - —
     - 
     - 
   * - YP
     - y_p
     - scalar
     - —
     - 
     - 
   * - ZP
     - z_p
     - scalar
     - —
     - 
     - 
   * - A1
     - a1
     - scalar
     - —
     - 
     - 
   * - A2
     - a2
     - scalar
     - —
     - 
     - 
   * - A3
     - a3
     - scalar
     - —
     - 
     - 
   * - V1
     - v1
     - scalar
     - —
     - 
     - 
   * - V2
     - v2
     - scalar
     - —
     - 
     - 
   * - V3
     - v3
     - scalar
     - —
     - 
     - 
   * - D1
     - d1
     - scalar
     - —
     - 
     - 
   * - D2
     - d2
     - scalar
     - —
     - 
     - 
   * - D3
     - d3
     - scalar
     - —
     - 
     - 
   * - BETA
     - bet_a
     - scalar
     - —
     - 
     - 

Outputs
-------

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

   * - Label
     - ID
     - Type
     - Description
   * - dynakeyword_mat103_p_output_1
     - dynakeyword_mat103_p_output_1
     - text
     - Plain-text LS-DYNA keyword block containing the fully populated *MAT_103 card, ready for inclusion in a simulation deck or downstream deck-authoring workers.

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

- cae.preprocessing.deck_authoring
- engineering.material.calibration
- engineering.material.library

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>dynakeyword_mat103_p</code>. Schema hash: <code>ae8fc69334b0</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>