.. _V6.04.256:

**v6.04.256** SSNV25 6 — Validation of the GTN gradient damage law with axisymmetric bar simulations
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**Summary:**

This test case makes it possible to validate the algorithm for integrating the Gurson—Tvergaard—Needleman damage law (:math:`\mathit{GTN}`) at a gradient with underintegrated or mixed standard finite elements in large deformations. A bar containing 10 finite elements is modelled.

The various models treated are:


* **Modeling** **A** (:math:`3D`): 3D_ GRAD_VARI


* **Modeling** **B** (:math:`3D`): 3D_ GRAD_INCO


* **Modeling** **C** (:math:`2D`): AXIS_GRAD_VARI


* **Modeling** **D** (:math:`2D`): AXIS_GRAD_INCO


.. 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
    Mod_lisation_D
    Synth_se_des_r_sultats