B modeling
==============


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

It is a modeling in :math:`\mathrm{2D}` with plane deformations D_ PLAN, using square cells.


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

Number of linear elements: 228 TRIA6

Number of knots: 497


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

**First calculation (MOONEY - RIVLIN)**


.. csv-table::

    "**Tested value**", "**Instant**", "**Reference**", "**Type**", "**Tolerance**"
    "Displacement :math:`w` ", "1.0"," :math:`-\mathrm{3,40091E-2}` ", "Analytics", "0.20%"


We also test the stress in the middle of the square:


.. csv-table::

    "**Value tested**", "**Instant**", "**Type**"
    "Constraint :math:`{\mathrm{\sigma }}_{\mathit{YY}}` ", "1,0", "Non-regression"


**Second calculation (NEO - HOOKEAN)**


.. csv-table::

    "**Tested value**", "**Instant**", "**Reference**", "**Type**", "**Tolerance**"
    "Displacement :math:`w` ", "1.0"," :math:`-0.078180` ", "Analytics", "0.20%"


We also test the stress in the middle of the square:


.. csv-table::

    "**Value tested**", "**Instant**", "**Type**"
    "Constraint :math:`{\mathrm{\sigma }}_{\mathit{YY}}` ", "1,0", "Non-regression"


**Third calculation (SIGNORINI)**


.. csv-table::

    "**Tested value**", "**Instant**", "**Reference**", "**Type**", "**Tolerance**"
    "Displacement :math:`w` ", "1.0"," :math:`-0.070936` ", "Analytics", "0.20%"


We also test the stress in the middle of the square:


.. csv-table::

    "**Value tested**", "**Instant**", "**Type**"
    "Constraint :math:`{\mathrm{\sigma }}_{\mathit{YY}}` ", "1,0", "Non-regression"