.. _V6.04.142:

**v6.04.142** SSNV142 - Own creep test: Granger model
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**Summary:**

This nonlinear quasistatic mechanics test case simulates a uniaxial creep test. It aims to validate the behavioral relationship of "Granger" BETON_GRANGER, making it possible to model the natural creep of concrete. This linear viscoelastic model (grouping of Kelvin rheological models in series) makes it possible to take into account the effects of stress, temperature and humidity.

In this test, the stress applied, the temperature and the hygrometric state are constant.

In the models:

• A: the cylinder is modelled axi-symmetrically by four quadrangle elements with 8 knots.

• D: treats the same problem on a :math:`\mathrm{3D}` cube.

The results obtained by*Code_Aster* are compared with the reference 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_D
    Synth_se_des_r_sultats