.. _V7.31.100:

**v7.31.100** WTNV100 - Undrained triaxial test with model CJS (level 1)
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**Summary**

This test validates level 1 of model CJS. It is a triaxial test under undrained conditions.

In the first two models, the calculations are carried out only on the solid part of the soil, the undrained aspect being modeled by zero volume deformation of the skeleton, these are :math:`\mathrm{3D}` models that differ from each other only by the mesh.

In the third modeling, hydraulic coupling is taken into account, the sample is completely saturated, the skeleton and the fluid are assumed to be incompressible.

For reasons of symmetry, only one eighth of a sample subjected to a triaxial test is interested in.

The lockdown level is :math:`100\mathit{kPa}`.

The results obtained with model CJS1 are compared to an analytical solution.


.. 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_se_des_r_sultats