.. _V1.01.237:

**v1.01.237** ZZZZ237 — Basic validation of LIAISON_UNIL and TOLE_APPA
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**Summary:**

This test is an analytical and non-regression test. Analytical tests are done on trips only. These tests are complemented by non-regression on the values of the nodal forces. The objective is to validate the following functionalities of the operator DEFI_CONTACT:


* the exclusion of knots by TOLE_APPA in discrete and continuous formulation


* the unilateral link condition LIAISON_UNIL applied to trips

Modeling A:


* Reference contact calculation using the 'CONTRAINTE' method, validation of TOLE_APPA

Modeling B:


* Validation of LIAISON_UNIL by comparison with the results of modeling A


.. toctree::
    :hidden:

    self

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

    Probl_me_de_r_f_rence
    Solution_de_r_f_rence
    Mod_lisation_A
    Mod_lisation_B
    Synth_se_des_r_sultats