.. _R7.01.48:

**r7.01.48** Behavior Model MCC
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**Summary:**

.. _OLE_LINK2:

This document presents the formulation and numerical integration of the modified Cam-Clay elastoplastic behavior model within the framework of Generalized Standard Materials. This model is dedicated to qualitatively representing the phenomenology of granular soils, taking into account the effects of dilatance/contraction, softening/hardening, as well as the critical state. The parameters of the model
The total number of behaviors is seven. Three define isotropic nonlinear elastic behavior; three represent the initial reversibility domain. Combined kinematic-isotropic work hardening carried out by volume plastic deformation is controlled by a last parameter. 

The behavioral equations are solved according to a variational principle for which the conditions of optimality are equivalent to a system of non-linear equations governing the equations of incremental evolution of the internal variables. These are resolved by using a direct time implicit integration method in MFront.

.. toctree::
    :numbered:
    :maxdepth: 2
    :caption: User Documentation

    Introduction
    Formulation_modele_MCC
    Formulation_incrementale_MCC
    Parametres_modele_MCC
    Integration_numerique_MCC
    Cas_tests_MCC
    Bibliographie_MCC
    Jacobien_MCC