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

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

The system is modelled with a material point and a PLAN_Y obstacle.

The quantities obtained following buckling due to shock are evaluated using the keyword FLAMBAGE of the operator DYNA_VIBRA.

We also check the various resolution methods (EULER, ADAPT_ORDRE2 and DEVOGE). With the adaptive time diagram ADAPT_ORDRE2 we define (in seconds):


* the initial time step: PAS = 0.0002,


* the maximum value of the time step: PAS_MAXI = 0.001,


* the minimum value of the time step: PAS_MINI = 2.E-8.


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

Number of knots: 2

Number of mesh: 1 SEG2


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

The values of the quantities associated with the buckling of the wall are tested.


.. csv-table::

    "**Identification**", "**Reference**", "**T** reference type", "**Precision**"
    ":math:`{t}_{\mathit{fl}}` "," :math:`\frac{\mathrm{\pi }}{6}s` ", "'ANALYTIQUE'", "0.1%"
    ":math:`{d}_{p}` ", "3 m", "'ANALYTIQUE'", "0.1%"
    ":math:`x({t}_{0})=x(\frac{\mathrm{\pi }}{6}+2\sqrt{3}+\frac{\mathrm{\pi }+6}{\sqrt{2}})` ", "0m", "'ANALYTIQUE'", "3.E-3m"