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


Calculation method used for the reference solution
--------------------------------------------------------

The solution is the result of a calculation code and an experimental test.

From the reference solution valid for modeling the entire plate, it is necessary to divide the normal resultant by two to obtain a valid reference for a half-plate.


Benchmark results
----------------------

The normal reaction force is as follows:


.. csv-table::

    "Imposed displacement (:math:`\mathrm{cm}`)", "Reaction force (:math:`N`)"
    "1.125", "8.0083"
    "2.2250", "16.0166"
    "3.3375", "24.0250"
    "4,4500", "32,0333"


The contact force is given as a reference. It is used to define validation tests, which are accompanied by non-regression tests with more stringent tolerances.


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

These results are relatively approximate because they are recorded directly on the paper curve.


Bibliographical references
---------------------------


* A.F. SALEEB, K. CHEN, and T.Y.P. CHANG: "An effective two dimensional frictional contact model for arbitrary curved geometry" - Int.J.Num.Meth.Eng.37 (1994) p.1297‑1321 (1994) p.1297‑1321.