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

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

20 items POU_D_T_GD


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

Number of knots: 21

Number of meshes and types: 20 SEG2 (10 in each branch)


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

For this modeling, the tests are non-regression. The values appear as references in all other models.


Graphical results of modeling A
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


.. image:: images/10000000000005C2000004A574C51139272AE567.png
    :width: 6.889in
    :height: 5.5563in


.. _RefImage_10000000000005C2000004A574C51139272AE567.png:

**Figure** 3.3.1-a: Force-Displacement Response, modeling POU_D_T_GD.

The values used as a reference for all other models are those in the table. The tolerances are adapted for the test to pass on the various platforms.


.. csv-table::

    "Effort (:math:`N`)", ":math:`\mathit{DX}` (:math:`\mathit{mm}`)", "()", ":math:`\mathit{DZ}` (:math:`\mathit{mm}`)", "Tolerance/:math:`\mathit{DX}` ", "Tolerance/:math:`\mathit{DZ}`"
    "1.0", "1.9557493476051e-01", "8.1849504447187e-01", "1.0e-06", "1.0e-06", "1.0e-06"
    "1.2", "2.2002897190547e+01", "4.5085481299695e+01", "1.6e-05", "1.2e-05", "1.2e-05"
    "1.4", "5.1370576657920e+01", "5.9127404636640e+01", "3.7e-06", "5.3e-06", "5.3e-06"
    "1.6", "7.2308205991507e+01", "6.1009065262385e+01", "5.9e-06", "9.7e-06", "9.7e-06"
    "2.0", "9.9971410898183e+01", "5.5985793815570e+01", "2.6e-06", "7.8e-06", "7.8e-06"
    "3.0", "1.3415732610325e+02", "3.9186782348842e+01", "1.0e-06", "7.0e-06", "7.0e-06"
    "4.0", "1.5070726838590e+02", "2.7660150436455e+01", "1.0e-06", "6.5e-06", "6.5e-06"
    "5.0", "1.6092764983263e+02", "2.0199366888417e+01", "1.0e-06", "6.2e-06", "6.2e-06"


**Table** 3.3.1-a: reference values.


notes
---------

The strategy adopted to obtain the force-displacement response of the structure is to pilot effort.

It is also necessary to use the automatic subdivision of the time step. Indeed, the element POU_D_T_GD does not uniformly converge into a residue and it is therefore difficult to complete a calculation with a uniform division of time unless you take very small steps of time, which is sub-optimal.