Benchmark solution
=====================


Calculation method
-----------------

The reference solution comes from results obtained by averaging on other calculation codes [:ref:`bib1 <bib1>`].


Reference quantities and results
------------------------

Tangential displacements (according to :math:`x`) at points :math:`ABCDE` of the contact surface (external reference).

Contact status, game and contact reaction at point :math:`R` for some models (non-regression).

Contact pressures at points :math:`ABCDE` of the contact surface for wear models (non-regression).


Uncertainties about the solution
----------------------------

Important (code average).


Bibliographical reference
-------------------------

[:ref:`1 <1>`] R.A. FEIJOO H.J.C. BARBOSA and N. ZOUAIN "Numerical formulations for contact problems with friction" Journal of Theorical and Applied Mechanics GAUTHIER - VILLARS.