N modeling
==============


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

The modeling is 3D, the frame is represented by a solid of almost rigid material.


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


.. image:: images/10000000000003DA00000321A8046C2D83B406EE.png
    :width: 3.6256in
    :height: 3.4528in


.. _RefImage_10000000000003DA00000321A8046C2D83B406EE.png:

Number of knots: 858

Number of meshes and types: 320 HEXA8 for the plate and 32 HEXA8 for the frame.


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

First calculation (controlled geometric update, formulation 'CONTINUE', solver 'MULT_FRONT')


.. csv-table::

    "**Identification**", "**Reference type**", "**Reference value**", "**Tolerance**"
    ":math:`\mathit{DX}` at the point :math:`A` instant :math:`1.0` ", "'SOURCE_EXTERNE'", "2.86E-5", "5.0%"
    ":math:`\mathit{DX}` at the point :math:`B` instant :math:`1.0` ", "'SOURCE_EXTERNE'", "2.72E-5", "5.0%"
    ":math:`\mathit{DX}` at the point :math:`C` instant :math:`1.0` ", "'SOURCE_EXTERNE'", "2.28E-5", "5.0%"
    ":math:`\mathit{DX}` at the point :math:`D` instant :math:`1.0` ", "'SOURCE_EXTERNE'", "1.98E-5", "5.0%"
    ":math:`\mathit{DX}` at the point :math:`E` instant :math:`1.0` ", "'SOURCE_EXTERNE'", "1,5E-5", "5,0%"



notes
---------

The results obtained are close to the external source to within 5% (code mean). The linear solver has no influence on the results.

The continuous formulation gives results identical to the discrete formulation.

The modeling of the frame by a material that is very stiff in front of the material of the plate gives results equivalent to the case of the rigid frame whose only edge is represented.