.. _V5.02.140:

**v5.02.140** SDNL140 — Damped vibration of two beams in contact and friction
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**Summary:**

This test models the non-linear vibratory response of two beams in contact and friction, subjected to the effect of a force concentrated at one end of the beam. The ultimate goal is to validate the DYNA_NON_LINE command with linear elastic behavior and frictional contact with DEFI_CONTACT. The reference solution is not analytical but comes from a finite element calculation with a method of penalization for contact and an explicit diagram.

The proposed models depend on patterns of finite differences in time and on spatial discretization.


* Modeling :math:`A`: linear mesh with TETRA4 and HHT diagram (implicit). In this modeling, we test the reference solution as a SOURCE_EXTERNE. We also test various Code_Aster algorithms (POINT_FIXE, NEWTON,, PARTIEL, GCP, PENALISEE) in non-regression.


* Modeling :math:`B`: quadratic mesh with TETRA10 and HHT diagram (implicit).


* Modeling :math:`C`: linear mesh with HEXA8 and HHT diagram (implicit).


.. 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
    Synth_ses_des_r_sultats