B modeling
==============


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


.. image:: images/1000020000000211000000786B80DB2F44D2C9DD.png
    :width: 4.0638in
    :height: 0.9217in


.. _RefImage_1000020000000211000000786B80DB2F44D2C9DD.png:

Modeling: **BARRE**

In this modeling, the square plate is modelled by a bar with a rectangular cross section of one meter wide and a thickness of 0.1 m.


Boundary conditions and loads
-------------------------------------

**Boundary conditions:**


.. csv-table::

    "**L** location", "**Blocked components**"
    "A1", "DX, DY, DZ"
    "C", "DX, DZ"


**Loads:**

The force is affected in A2, it is a nodal force that must be multiplied by the width of the plate to be equivalent to modeling A.


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

Knots: 4

Meshes: 3 SEG2


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

Three calculations are performed, the first with DYNA_NON_LINE in an explicit diagram and MASS_DIAG =' NON '(this calculation is cut in two in order to test the correct transmission of the observation table), the second with DYNA_NON_LINE in an explicit diagram and MASS_DIAG =' OUI' and the third with DYNA_VIBRA without a diagonal mass matrix.

**First calculation:**


.. csv-table::

    "**Identification**", "**Reference**", "**Reference type**", "**Tolerance**"
    "Displacement :math:`\mathit{DX}` in :math:`A2`, INST = 1,2E-3", "3.51957D-05", "'ANALYTIQUE'", "0.05%"
    "Displacement :math:`\mathit{DX}` in :math:`A1`, INST = 3E-4 (via observation table)", "0. ", "'ANALYTIQUE'", "0.1%"
    "Displacement :math:`\mathit{DX}` in :math:`A1`, INST = 9E-4 (via observation table)", "0. ", "'ANALYTIQUE'", "0.1%"


**Second calculation:**


.. csv-table::

    "**Identification**", "**Reference**", "**Reference type**", "**Tolerance**"
    "Displacement :math:`\mathit{DX}` in :math:`A2`, INST = 1,2E-3", "3.51957D-05", "'ANALYTIQUE'", "0, 5%"


**Third calculation:**


.. csv-table::

    "**Identification**", "**Reference**", "**Reference type**", "**Tolerance**"
    "ECIN_ELEM, :math:`M21` mesh, Comp. TOTALE ", "9.10387D-02", "'ANALYTIQUE'", "0.5%", "0.5%"