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


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

The structure is modelled by a regular mesh composed of :math:`8\times 8` TRIA6, respectively along the :math:`x,y` axes. The interface is not meshed.


.. image:: images/10000000000002EE000002F4832CAD5C0E318EE3.png
    :width: 4.0272in
    :height: 3.8626in


.. _RefImage_10000000000002EE000002F4832CAD5C0E318EE3.png:

**Figure** 2.1-1 **: Plate mesh (TRI6)**


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

The bifurcation is located along an edge, on the segment of vertex nodes :math:`(\mathrm{0,}0.5)`, :math:`(\mathrm{0,}0.625)` and middle node :math:`(\mathrm{0,}0.5625)`. The fork takes place precisely at point :math:`(\mathrm{0,}0.55)` and the interface does not go through the middle node.

We then test the movement on the middle node positioned in :math:`(\mathrm{0,}0.5625)`, to verify that it is positioned on the "right" side of the interface.


*
    *
        *


.. csv-table::

    "**Identification**", "**Reference**", "**Tolerance**"
    "DEPL_X ", "", ""
    "NO_M: H1X", "1.0", "1E -12%"
    "NO_M: DX", "1.0", "1E -12%"



Additional results
-------------------------

We find the "regularization" of the bifurcation in the vicinity of the coordinate point :math:`(\mathrm{0,}0.55)`.


.. image:: images/1000000000000392000003243F5F95F5805E8A94.png
    :width: 5.5465in
    :height: 5.0661in


.. _RefImage_1000000000000392000003243F5F95F5805E8A94.png:

**Figure** 2.3-1 **: Field of movement along X for the fork "before" the midpoint**