Modeling A
==============


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


.. image:: images/10000201000002BB000001500B605D5FBBC4A554.png
    :width: 4.2626in
    :height: 2.0484in


.. _RefImage_10000201000002BB000001500B605D5FBBC4A554.png:


.. image:: images/10000201000002EA0000017C98E6CE974B7F9E47.png
    :width: 4.2154in
    :height: 2.1472in


.. _RefImage_10000201000002EA0000017C98E6CE974B7F9E47.png:


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

Number of knots: 21048

Number of meshes and types: 6380 PENTA18 and 280 HEXA20

The middle nodes of the edges of the elements touching the bottom of the crack are moved to a quarter of these edges.


Test values and modeling results A
---------------------------------


.. csv-table::

    "Identification", "Test type", "Value", "Precision"
    ":math:`\mathit{DY}` at node :math:`X` "," NON_REGRESSION ", "0.864211781008", "1.e-12"



.. csv-table::

    "Identification", "Test type", "Value", "Precision"
    "INST "," NON_REGRESSION ", "1.0E0"," :math:`\text{0,10\%}`"
    "ITER_GLOB "," NON_REGRESSION ", "7", "0"


The keyword SYME is used in the DEFI_FOND_FISS operator, which means that half of the structure is taken into account in the CALC_G operator.

In order to test the independence of the integration rings, the Gissue value of crown 1 is used as a reference to test the values of crowns 2 and 3.


.. csv-table::

    "Identification", "Test type", "Value", "Precision"
    "G — Crown 1"," NON_REGRESSION ", "55.72"," :math:`{10}^{-4}\text{\%}`"
    "G — Crown 2"," AUTRE_ASTER ", "55.72"," :math:`\text{2\%}`"
    "G — Crown 3"," AUTRE_ASTER ", "55.72"," :math:`\text{2\%}`"


G is calculated in the plane of symmetry perpendicular to the crack


notes
---------

Nil.