.. _V6.01.122:

**v6.01.122** SSNA122 — Contact validation benchmark NAFEMS 2: punch (rounded edges)
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**Summary:**

This problem is the second test case of a benchmark NAFEMS for validating touch-friction. The benchmark references are obtained with the Abaqus and MARC codes.

This test models a contact between a punch with a rounded edge (fillet) and an axisymmetric block. This test case validates the axisymmetric contact and makes it possible to observe the positive effect of a leave on the singularity of the contact pressure in the vicinity of a sharp angle.

This test includes 4 models to test:


* linear and quadratic elements,


* the 'CONTINUE' contact treatment formulations without and with friction.


* 'DISCRETE' frictionless contact treatment formulations


.. toctree::
    :hidden:

    self

.. toctree::
    :maxdepth: 2
    :numbered:

    Probl_me_de_r_f_rence
    Solution_de_r_f_rence
    Mod_lisation_A
    Mod_lisation_B
    Mod_lisation_C
    Mod_lisation_D
    Synth_se_des_r_sultats