D modeling
==============

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

The modeling tested is DIS_T on a SEG2 mesh. The stiffness characteristic of the discrete is of the K_T_D_L type.


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

Number of knots: 2, number of stitches: 1, elements SEG2: 1.


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

The condition while traveling is a function of time:

:math:`{U}_{0}.\mathrm{sin}(2\pi .\mathit{f.t})` with :math:`f=5\mathit{Hz};{U}_{0}=0.1m`

The analysis time step and time interval are:

:math:`\Delta t=\mathrm{4,0}{10}^{-3}s` and :math:`t\in [:ref:`0s,5s <0s,5s>`] `


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

The quantities tested are displacement and efforts. The values are those shown in the table.

Tolerances are by default.


.. image:: images/100002010000052D0000042C699094030B3A6FFC.png
    :width: 5.5118in
    :height: 4.4409in


.. _RefImage_100002010000052D0000042C699094030B3A6FFC.png:

**Figure** 6.4-a **: Force-Displacement Response, calculated by a RK5 method and by** **Code_Aster.**