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

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

We use C_ PLAN modeling. The main constraints ratio :math:`{\sigma }_{2}\mathrm{/}{\sigma }_{1}` is set to :math:`0.52`.


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

The mesh contains 1 element of type QUAD4.


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

We test the deformations, the stresses as well as the criteria ELS and ELU at the node :math:`\mathit{N1}` in Figure 2 times.


.. csv-table::

    "**Identification**", "**Instant**", "**Reference Type**", "**Reference Value**", "**Tolerance**"
    "Constraint :math:`{\sigma }_{\mathit{yy}}` ", "0.18", "'ESSAI'", ":math:`-10800000.0\mathit{Pa}` "," 5%"
    "Deformation :math:`{\epsilon }_{\mathit{yy}}` ", "0.18", "'ESSAI'", ":math:`-2.863E-04` "," 5%"
    "Constraint :math:`{\sigma }_{\mathit{yy}}` ", "0.69", "'ESSAI'", ":math:`-41397208\mathit{Pa}` "," 5%"



notes
---------

The first two measurement points allow you to compare the slope at the origin of the Stress-Deformation curve. The last point corresponds to the breaking stress.