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


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

We use a MEMBRANE modeling in large deformations (DEFORMATION =' GROT_GDEP ') with the Saint Venant Kirchhoff law of behavior (RELATION =' ELAS_MEMBRANE_SV'). Bi-quadratic elements are used.


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

The mesh contains 132 elements of type QUAD9.


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

The displacement at the center of the membrane subjected to gravity, in O, with respect to the semi-analytical solution is tested.


.. csv-table::

    "**Identification**", "**Reference type**", "**Reference value** (:math:`m`)", "**Precision**"
    "Point :math:`O` - :math:`\mathit{DZ}` ", "'ANALYTIQUE'", "-6,352"," 0.05%"


The results obtained with non-continuous pressure are compared with those of gravity.


.. csv-table::

    "**Identification**", "**Reference type**", "**Reference value** (:math:`m`)", "**Precision**"
    "Point :math:`O` - :math:`\mathit{DZ}` ", "'AUTRE_ASTER'", "-6,34895127557"," 0.0001%"



notes
---------

We used linear research (RECH_LINEAIRE) to achieve convergence.