B modeling
==============


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

The modeling is identical to the modeling A, but in this case we will work with plane deformations (D_ PLAN) and, as already mentioned above, the Poisson coefficients no longer intervene in the solution.

The outer ring defines the master surface.


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

Idem modeling A.


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

The contact pressure (LAGS_C) is calculated for the node :math:`A` with coordinates :math:`(0.6\mathrm{,0}.0)`, the node that at the initial moment is located farthest to the right of the interface between the two rings.


.. csv-table::

    "**Identification**", "**Reference**", ""
    "LAGS_C at node :math:`A` "," :math:`p(t)` "," ANALYTIQUE"


For a few steps of load, the calculated value is compared to that given by equation 1.5. The accuracy is less than 1%.


Comments
-------------


.. image:: images/Object_99.png
    :width: 5.0516in
    :height: 2.5665in


.. _RefSchema_Object_99.png:

Figure 4.4-1: evolution of the gap between the analytical solution and the solution given by Code_Aster for integration at nodes and Gauss points.

Idem modeling A.