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


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

Volume elements MECA_PENTA15


.. image:: images/10000000000001AB000001906AF867F6D6694E31.png
    :width: 3.3354in
    :height: 3.1244in


.. _RefImage_10000000000001AB000001906AF867F6D6694E31.png:


.. csv-table::

    "Discretization:", "beam :math:`\mathrm{AB}`: 60 meshes PENTA15
    (2 stitches in the section)"
    "Boundary conditions:", ""
    "* in all knots
    * at the :math:`A` end (node group G_1)", "DDL_IMPO: (TOUT :' OUI 'DZ: 0.)
    (GROUP_NO: G_1 DX: 0., DY: 0)"



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


.. csv-table::

    "Mesh:", "Number of nodes: 368
    Number of meshes and type: 60 PENTA15"



Tested values
---------------


.. csv-table::

    "**Identification**", "**Solution for**
    **semi-analytic**", "**Reference SAMCEF**", "**Aster**", "**% difference**", "**% difference**"
    **ASTER - SAMCEF**"
    "", "**frequency**", "**in HZ**", "**in HZ**", ""
    "consistent matrix", "", "", "", ""
    "", "", "", "", ""
    "flexure 1", "54.18", "56.84", "56.84", "56.82", "— 0.038%"
    "flexure 2", "171.94", "180.00", "180.00", "179.96", "— 0.022%"
    "flexure 3", "384.40", "401.00", "400.93", "— 0.018%"
    "flexure 4", "697.24", "723.20", "723.41"," 0.029%"
    "flexure 5", "1112.28", "1145.41", "1146.41"," 0.088%"
    "", "", "", "", ""
    "diagonal matrix", "", "", "", ""
    "", "", "", "", ""
    "flex 1", "54.18", "56.84", "56.84", "56.76", "— 0.149%"
    "flexure 2", "171.94", "180.00", "180.00", "179.51", "— 0.272%"
    "flex 3", "384.40", "401.00", "401.00", "399.25", "— 0.437%"
    "flexure 4", "697.24", "723.20", "719. ", "— 0.583%"
    "flexure 5", "1112.28", "1145.41", "1140. ", "— 0.740%"