.. _V6.04.155:

**v6.04.155** SSNV155 - Drained triaxial test on a sample rotated at an angle of —PI/6 with respect to the x axis with model CJS (level 2)
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**Summary**

This test makes it possible to complete the validation of level 2 of model CJS already covered in test case SSNV136. It corresponds to the numerical simulation of the same test (drained triaxial test) on the same material but with a different geometry. The tested sample is thus rotated by an angle of :math:`–\pi \mathrm{/}6` with respect to the :math:`x` axis. As a result, directions :math:`x,y,z` are no longer main directions. This makes it possible to validate the numerical integration operations of the model that act on the non-diagonal terms of the tensors, deformations and stresses.

As for test case SSNV136, the calculations are carried out only on the solid part of the soil, without hydro-mechanical coupling. For reasons of symmetry, only one eighth of a sample subjected to a triaxial test is interested in. The lockdown level is :math:`400\mathit{kPa}`.

It is a non-regression test. The results obtained are compared with those provided by an *Aster* calculation with a mesh whose axes of symmetry are the coordinate axes. They correspond exactly to the rotation of angle :math:`–\pi \mathrm{/}6`.


.. toctree::
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    self

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

    Probl_me_de_r_f_rence
    Solution_de_r_f_rence
    Mod_lisation_A
    Synth_se_des_r_sultats