.. _V1.03.125:

**v1.03.125** UMAT002 — Code_Aster-Umat interface test in linear elasticity under multiaxial loading
=============================================================================================================

**Summary:**

On a linear elastic problem, a comparison is made between *Code_Aster-* Umat and*Code-Aster* with behavior ELAS. This test involves a simulation of a deformation loading path at a material point, i.e. on a model such that the stress and deformation states are homogeneous at all times. The loading path is multi-axial in order to verify the robustness and reliability of the numerical integration, its insensitivity to a change of units, the invariance with respect to a global rotation applied to the problem, the accuracy of the tangent matrix.

Modeling A: this modeling makes it possible to validate model UMAT in :math:`\mathrm{3D}`.


.. toctree::
    :hidden:

    self

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

    Probl_me_de_r_f_rence
    Solution_de_r_f_rence
    Mod_lisation_A
    Synth_se_des_r_sultats