J modeling
==============


Characteristics of modeling
-----------------------------------

The model tested is 3D. The law of behavior used is law ROUSSELIER with the option (PORO_TYPE = 2, cf. U4.43.01) making it possible to calculate the porosity as a function of the total deformation (in large deformations of type SIMO_MIEHE). Control by deformation is validated.


Characteristics of the mesh
----------------------------

The mesh is obtained by GIBI. It is composed of 10 HEXA8 elements (only one element in the section)


.. image:: images/100000000000033C000001ECA027BEEEFEF4D103.png
    :width: 3.1492in
    :height: 1.8701in


.. _RefImage_100000000000033C000001ECA027BEEEFEF4D103.png:


Tested sizes and results
------------------------------

To validate the solution obtained, the following is tested at serial number 21:


1. the following displacement :math:`z` of the face on which the load is imposed,


2. the :math:`\mathit{zz}` stress as well as the damage value in the weakened mesh


3. the value of the plasticity indicator in the weakened mesh.


.. csv-table::

    "**Field name**", "**Component**", "**Location**", "**Tolerance**"
    "DEPL ", "DZ", ":math:`E` ", "10E-6"
    "SIEF_ELGA "," SIZZ "," :math:`M1`, point 1", "10E-6"
    "VARI_ELGA ", "V3"," :math:`M1`, point 1", "10E-6"