.. _R7.02.16:

**r7.02.16** Gp method: an energetic approach to the prediction of cleavage
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**Summary**

The parameter :math:`{G}_{p}` makes it possible to define a valid priming criterion in the field of cleavage (fragile intra-granular rupture in the presence of plasticity). First of all, we recall the foundations of this approach: energetic framework for the behavior of structures, modeling of the crack by a notch, principle of minimizing energy and definition of the criterion. The link between the global approach and the local approach is discussed before then specifying the essential elements for implementing :math:`{G}_{p}` in *Code_Aster*.




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    Introduction
    Mod_lisation_des_d_fauts_sous_forme_d_entaille
    Principe_de_minimisation_d__nergie
    D_finition_d_un_crit_re_d_amor_age_en__lastoplasticit_
    Lien_entre_approche_globale_et_locale
    Mise_en__uvre_dans_Code_Aster
    Bibliographie
    Description_des_versions_du_document