D modeling
==============


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


.. image:: images/Object_10.svg
    :width: 486
    :height: 157


.. _RefImage_Object_10.svg:

We are looking for a movement independent of z; a single "row" of quadrangular elements is therefore sufficient.

**Cut**: 8 quadrangles MEC3QU9H. Modeling COQUE_3D.

The thickness of the elements is divided into 3 layers for the nonlinear calculation [:ref:`R3.07.04 <R3.07.04>`]. Each layer has 3 integration points in upper layer skin, in the middle of each layer and in lower layer skin. The model studied here therefore includes 7 integration points in the thickness of the plate.

**Boundary conditions:**


.. code-block:: text
 AB (GROUP_NO: AB): DX = DY = DZ = DRX = DRY = DRZ = 0
TOUT: 'OUI': DZ = DRX = DRY = 0

**Loading**: two types of loading are applied:

.. csv-table::

    "* nodal forces in :math:`C` and :math:`D` and :math:`E` (middle node on CD side) FX (C) =", ":math:`\mathrm{FX}(D)=\mathrm{pxLh}/6=\mathrm{0.08333N.}`"
    "", ":math:`\mathrm{FX}(E)=\mathrm{2pxLh}/3=\mathrm{0.33N.}`"



* force distributed on the CD :math:`\mathrm{FX}=\mathrm{5N}/\mathrm{mm}` side.


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


.. csv-table::

    "Number of nodes:", "43 external + 8 internal"
    "Number of meshes and types:", "8 QUA9 + 1 SEG3"



Tested values
---------------

At order number 10 or :math:`t=1`. The results are the same with FORCE_NODALE or FORCE_ARETE.


.. csv-table::

    "**Identification**", "**Reference**"
    ":math:`\mathrm{DX}(X)` ", "0.02743"
    ":math:`\mathrm{DY}(X)` ", "—0.2804"