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

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


.. image:: images/1000000000000119000000D23802FDEF8370A91F.png
    :width: 2.3354in
    :height: 1.739in


.. _RefImage_1000000000000119000000D23802FDEF8370A91F.png:

Segment :math:`\text{AB}` is divided into 10 elements of the same length (10.) that form group POUTRE. The stitches are duplicated to form group BARRE.


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

Number of knots: 11

Number of meshes and types: 2 times 10 SEG2


Loading
-----------


Calculations with assignment by value
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

In the reference calculation, pre-deformation is affected on the beam elements.


.. csv-table::

    "EPX "," :math:`1E-3`"


In the second calculation, pre-deformation is affected on the member elements.


.. csv-table::

    "EPXX "," :math:`1E-3`"



Calculations with assignment by function
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The pre-deformation function is as follows:


.. csv-table::

    "EPXX "," :math:`\mathrm{1E-5.}(X+Y+Z)\mathrm{.}\mathit{INST}`"


For the reference calculation (assignment by value), the value of :math:`\mathrm{1E-5.}(X+Y+Z)` is calculated and assigned for each bar cell by taking the coordinates of its Gauss point (middle of the cell). The dependence on time is made by adding a multiplier function to the load.


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


Calculations with assignment by value
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Reference calculation:

.. csv-table::

    "**Identification**", "**T** reference type", "**Reference values**", "**Tolerance**"
    "Instant 1, Node B, DX", "'NON_REGRESSION'", "-", "-"


Second calculation:

.. csv-table::

    "**Identification**", "**T** reference type", "**Reference values**", "**Tolerance**"
    "Instant 1, Node B, DX", "'AUTRE_ASTER'", "0.0288675134603", "1E-6"



Calculations with assignment by function
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Reference calculation:

.. csv-table::

    "**Identification**", "**T** reference type", "**Reference values**", "**Tolerance**"
    "Instant 1, Node B, DX", "'NON_REGRESSION'", "-", "-"
    "Instant 2, Node B, DY", "'NON_REGRESSION'", "-", "-"


Second calculation:

.. csv-table::

    "**Identification**", "**T** reference type", "**Reference values**", "**Tolerance**"
    "Instant 1, Node B, DX", "'AUTRE_ASTER'", "0.0250000000004", "1E-6"
    "Instant 2, Node B, DY", "'AUTRE_ASTER'", "0.049999999999999", "1E-6"