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

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


.. image:: images/1000121200000C8100000EAD45BC4BB23A8BA082.svg
    :width: 161
    :height: 189


.. _RefImage_1000121200000C8100000EAD45BC4BB23A8BA082.svg:

The bars :math:`1-2`, :math:`2-3`, :math:`3-4`, and :math:`4-1` are each modeled by 1 element BARRE.

The cables are each modelled by a CABLE element.


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

So there are 4 elements BARRE and 2 elements CABLE.


Quantities tested and results of modeling A
----------------------------------------

We start by testing the :math:`N` tensile forces in cables and bars:

.. csv-table::

    "**Identification**", "**Reference**", "**Tolerance**"
    ":math:`N` in the :math:`3-4` bar at NUME_ORDRE =2", "-1000, 0", "0.03%"
    ":math:`N` in cable :math:`1-3` to NUME_ORDRE =2", "-1414.2", "0.03%"
    ":math:`N` in the :math:`1-2` bar at NUME_ORDRE =2", "0", "1.0E -3%"
    ":math:`N` in the :math:`2-3` bar at NUME_ORDRE =2", "0", "1.0E -3%"
    ":math:`N` in the :math:`4-1` bar at NUME_ORDRE =2", "0", "1.0E -3%"
    ":math:`N` in cable :math:`4-2` to NUME_ORDRE =2", "0", "1.0E -3%"



Other values tested
~~~~~~~~~~~~~~~~~~~~~~~~~

We also test the nodal force at the N3 node, which must be equal to the external force applied (i.e. :math:`\mathrm{1000N}` according to DX):

.. csv-table::

    "**Identification**", "**Reference**", "**Tolerance**"
    "FORC_NODA, direction DX, at node N3 and at NUME_ORDRE =2", "-1000, 0", "0.03%"


The parameters of the result data structure are also tested:

.. csv-table::

    "**Identification**", "**Reference**", "**Tolerance**"
    "INSTpour NUME_ORDRE =2", "2", "0%"
    "ITER_GLOB for NUME_ORDRE =2", "2"," 0.00%"