Reference issues
======================

Geometry
---------

A discreet, POI1 type with DIS_CONTACT behavior.


A and B modeling
-------------------

This case models a mass that bounces off an elastic (modeling A) or absorbent (modeling B) surface.


Material properties
~~~~~~~~~~~~~~~~~~~~~~~~~~

For modeling A

.. csv-table::

    "Mass", ":math:`1.0\mathit{kg}`"
    "Game", ":math:`-2.0m`"
    "Raidnor", ":math:`100N/m`"
    "Raidxyz", ":math:`10000N/m`"


For modeling B, these are the same parameters as before with the addition of damping.

.. csv-table::

    "AmorNor", "5.0 :math:`Ns/m`"



Boundary conditions and loads
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The mass is released with an initial speed and subjected to gravity:

.. csv-table::

    "Gravity", ":math:`10.0m/{s}^{2}`"
    "V0"," :math:`-1.0m/s`"


The movement of the mass is only vertical: :math:`\mathit{DX}=\mathrm{0,}\mathit{DY}=0`