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


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

The elements are modeled by discrete elements with 6 degrees of freedom DIS_TR.


.. image:: images/100008F0000017760000099D1B6BEB418BD6018E.svg
    :width: 302
    :height: 124


.. _RefImage_100008F0000017760000099D1B6BEB418BD6018E.svg:

Node :math:`\mathrm{NO2}` is subject to an imposed force :math:`\mathrm{Fx}(t)`. We calculate the relative displacement of node :math:`\mathrm{NO2}` with respect to the displacement of node :math:`\mathrm{NO1}` and we compare it to the displacement calculated in the references [:ref:`bib1 <bib1>`] and [:ref:`bib2 <bib2>`].

The time integration is carried out with the Euler algorithm (time step: :math:`{10}^{-3}s`).


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

It is the same mesh as for modeling A.


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

Relative displacement of node :math:`\mathrm{NO1}` (in meters).


.. csv-table::

    "**Time (** :math:`s` **)**", "**References**
    [:ref:`bib1 <bib1>`], [:ref:`bib2 <bib2>`]", "**Code_Aster**", "**Error (%)**"
    "0.01", "—6,500E—05", "—6,447E—05", "—0,82"
    "0.02", "—5,130E—04", "—5,127E—04", "—0.064"
    "0.03", "—1.679E—03", "—1.678E—03", "—0.037"
    "0.04", "—3.457E—03", "—3.457E—03", "0.013"
    "0.05", "—5,316E—03", "—5,317E—03", "0.022"
    "0.06", "—6,764E—03", "—6,766E—03", "0.035"
    "0.07", "—7,609E—03", "—7,611E—03", "0.027"
    "0.08", "—7,774E—03", "—7,776E—03", "0.024"
    "0.09", "—7,244E—03", "—7,246E—03", "0.028"
    "0.1", "—6.068E—03", "—6.069E—03", "0.014"
    "0.12", "—2,242E—03", "—2,242E—03", "—0.017"
    "0.14", "2.367E—03", "2.369E—03", "0.071"
    "0.16", "6,149E—03", "6,152E—03", "0.041"
    "0.18", "7.783E—03", "7.785E—03", "0.029"
    "0.2", "6,698E—03", "6,699E—03", "0.018"