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

This modeling tests triangular elements with VMIS_ISOT_LINE. The loading in the elastic zone is done in several steps of time in order to test the convergence of the IMPLEX method in a single iteration.


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


.. image:: images/Object_1.png
    :width: 2.6846in
    :height: 3.7102in


.. _RefSchema_Object_1.png:

**Figure** 3.1-a **: Model A mesh**

Modeling: D_ PLAN

Boundary conditions:


* :math:`\mathrm{DX}=0.0\mathrm{mm}` out of :math:`45`,


* :math:`\mathrm{DY}=0.0\mathrm{mm}` out of :math:`12`,


* :math:`\mathrm{DY}=0.3\mathrm{mm}` out of :math:`34`.


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

The number of knots is 297. The mesh consists of linear triangular elements:


* SEG2: 92


* TRIA3: 520


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

Figure 3.4-1 shows the force-displacement curves calculated with both methods. The values tested are differences in effort between the two methods at different times.


.. image:: images/100000000000034A00000253A3FC7B96BFFEA25F.png
    :width: 5.3626in
    :height: 4.0161in


.. _RefImage_100000000000034A00000253A3FC7B96BFFEA25F.png:

**Figure** 3.3-a **: Force-displacement curves**


.. csv-table::

    "**Instant (s)**", "**Difference between the two curves (** :math:`\mathrm{kN}` **)**"
    "0.04", "0"
    "0.08", "-5.65E-004"
    "0.12", "-5.00E-003"
    "0.16", "-8.95E-003"
    "0.2", "-2.94E-002"
    "0.32", "-1.26E-003"
    "0.4", "-5.63E-004"
    "0.6", "-1.60E-004"
    "0.8", "-9.43E-005"
    "1", "-8.69E-005"


These values are tested in non-regression.

A least square criterion between the two curves is also used. Its value is: :math:`\mathrm{0,0824}`.