C modeling
==============


But
---

The aim of this test is to validate the use of 3D modeling on support mesh HEXA8 in CALC_EUROPLEXUS. It is already possible in EPX not to read an initial stress state on the corresponding elements. We will therefore also use and validate this feature which was immediately activated in CALC_EUROPLEXUS.


Description
-----------

This test is the equivalent of test case EPX bm_cub8_ini_med_cont.

It is a cube formed by a single element. The lower face is embedded and a loading (imposed displacement) is applied to the upper face. This calculation is done with the operator STAT_NON_LINE in order to produce an initial state for the calculation EPX.

We then launch CALC_EUROPLEXUS with this initial state (movements + constraints) and without additional loading than those that allowed us to obtain the initial state. It is then expected that EPX will obtain a balanced initial state. We go through a hundred steps of time. We get the result and we check that nothing has changed compared to the initial state.


Principle of validation
----------------------

Comparison with the initial state.


Tested values
---------------


.. csv-table::

    "**Node**", "**Component**", "**Reference Type**", "**Reference Value**", "**Tolerance**"
    "N8"," :math:`\mathit{DX}` ", "'AUTRE_ASTER'", "2.15537139042198E-03", "1E-6"
    "N7"," :math:`\mathit{DY}` ", "'AUTRE_ASTER'", "-2.15537139042198E-03", "''", "''", "''", "-2.15537139042198E-03", "1E-6"
    "N6"," :math:`\mathit{DZ}` ", "'AUTRE_ASTER'", "1.E-02", "1E-6"



.. csv-table::

    "**Mesh**", "**Component**", "**Point**", "**Reference Type**", "**Reference Value**", "**Tolerance**"
    "M1"," :math:`\mathit{SIXX}` ", "1", "'AUTRE_ASTER'", "''", "1.20270859098697E+08", "1E-6"
    "M1"," :math:`\mathit{SIYY}` ", "2", "'AUTRE_ASTER'", "''", "-2.15863269903220E+07", "1E-6"
    "M1"," :math:`\mathit{SIZZ}` ", "3", "'AUTRE_ASTER'", "''", "3.78842807394021E+08", "1E-6"
    "M1"," :math:`\mathit{SIXY}` ", "4", "'AUTRE_ASTER'", "''", "-3.58270324318444E+04", "1E-6"
    "M1"," :math:`\mathit{SIXZ}` ", "5", "'AUTRE_ASTER'", "''", "-1.48252765464761E+07", "1E-6"
    "M1"," :math:`\mathit{SIYZ}` ", "6", "'AUTRE_ASTER'", "''", "1.47199039729651E+07", "1E-6"