F modeling
==============


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

A 3D modeling with HEXA8 elements testing the functionalities of node-mesh contact with friction treated with the penalized method for contact and friction has been implemented.


.. image:: images/100000000000021A000001F5922D3363CE87BEA3.png
    :width: 5.589in
    :height: 5.2043in


.. _RefImage_100000000000021A000001F5922D3363CE87BEA3.png:

The game between the skate and the frame is defined by function using the keyword "DIST_2".

To avoid rigid body movements, the skate is held in place by springs of low stiffness:

.. csv-table::

    "RES_HAUT ", ": :math:`k=1N/\mathrm{mm}`"
    "RES_FOND ", ": :math:`k=1N/\mathrm{mm}`"
    "RES_LAT ", ": :math:`k=20N/\mathrm{mm}`"


Boundary conditions:

Free end of the springs: :math:`\mathrm{DX}=\mathrm{DY}=\mathrm{DZ}=0`.

Built: :math:`\mathrm{DX}=\mathrm{DY}=\mathrm{DZ}=0`.


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

Number of knots: 269

Number and type of meshes: 129 HEXA8, 103 QUAD4