SE and F modeling
===================

Characteristics of the models
----------------------------------

In these models, the C and D models are re-used, but the quantities obtained as a result of buckling due to the shock are evaluated using the behavior CHOC_ENDO_PENA of the operator DYNA_NON_LINE. Modeling E is without shock damping, while for modeling F damping is added.

We model the system with a material point and a discrete point whose material is DIS_CHOC_ENDO [:ref:`U4.43.01 <U4.43.01>`].


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.

*Modeling*E: *

.. csv-table::

    "**Identification**", "**Reference**", "**T** reference type", "**Precision**"
    ":math:`\mathit{max}(d)` ", "- 6.5 m", "'ANALYTIQUE'", "0.1%"
    ":math:`{d}_{p}` ", "- 3.1m", "'ANALYTIQUE'", "0.1%"
    ":math:`{V}_{\mathit{rebond}}` ", "13.03840481m/s", "'ANALYTIQUE'", "0.1%"


*Modeling*F: *

.. csv-table::

    "**Identification**", "**Reference**", "**Aster**", "**Precision**"
    ":math:`\mathit{max}(d)` ", "-", "-5.50565597763881 m", "Non-regression"
    ":math:`{d}_{p}` ", "-", "-2.54856258826116 m", "Non-regression"
    ":math:`{V}_{\mathit{rebond}}` ", "-", "0.0999444607239 m/s", "Non-regression"