E modeling
==============


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

Shell element DST (modeling a quarter of a plate).

The user coordinate system is confused with the orthotropy coordinate system. Compared to modeling A, the model is characterized here by a different orientation of the surface cells.

C

D

A

.. image:: images/1000000000000181000001818735F391223BF25D.png
    :width: 4.548in
    :height: 4.548in


.. _RefImage_1000000000000181000001818735F391223BF25D.png:

B


.. csv-table::

    "Boundary conditions:", "DDL_IMPO"
    "", "(GROUP_NO ='AB', DZ=0., DRY =0.)"
    "", "(GROUP_NO ='BC', DX=0., DRY =0.)"
    "", "(GROUP_NO ='CD', DY=0., DRX =0.)"
    "", "(GROUP_NO ='DA', DZ=0., DRX =0.)"
    "", ""
    "Point :math:`C` ", "mesh: 72"



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

Number of knots: 56

Number of meshes and types: 72 TRIA3


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


.. csv-table::

    "**Point C**", "**Identification**", "**Reference**", "**Aster**", "**% Difference**"
    "", ":math:`{\sigma }_{x}` on lower layer 3", "4.7100E+01", "5.2430E+01", "11.317"
    "", ":math:`{\sigma }_{x}` on top layer 3", "5.8800E+01", "6.5537E+01", "11.459"
    "Constraints", ":math:`{\sigma }_{x}` on lower layer 2", "—4.7100E+01", "—5.2430E+01", "11.317"
    "", ":math:`{\sigma }_{x}` on top layer 2", "4.7100E+01", "5.2430E+01", "11.317"
    "", ":math:`{\sigma }_{x}` on layer 1 below", "—5.8800E+01", "—6.5537E+01", "11.459"
    "", ":math:`{\sigma }_{x}` on top layer 1", "—4.7100E+01", "—5.2430E+01", "11.317"
    "", ":math:`\mathrm{DX}` ", "0.0", "0.0", "0.0"
    "Displacement", ":math:`\mathrm{DY}` ", "0.0", "0.0", "0.0", "0.0"
    "", ":math:`\mathrm{DZ}` ", "4.1920E+01", "4.2024E+01", "4.1920E+01", "0.248"



Contents of the results file
----------------------------

Values at the displacement observation point and constraints :math:`{\sigma }_{x}`.