Modélisation Numérique du comportement à l’endommagement d’un matériau composite

Type : Thèse de doctorat
Auteur(s) :  Hassani Mohamed
Directeurs du mémoire/thèse :  -
Année :  (En préparation)
Domaine : Génie mécanique
Etablissement :  Université Badji Mokhtar de Annaba
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF : 
Mots clés :  Woven composite, damage, plasticity

Résumé :

In this thesis, we focused on the development of micromechanical model specific to plain woven composite in order to predict their progressive damage , where the law of material behavior is considered as nonlinear elasto-plastic (this depend on tensile test results) . The first part of the work will be conducted to elaborate plain woven composite specimen and perform tensile test. After that micromechanical model would be developed in order to determine the initial effectives elastic modulus from homogenization techniques, of RVE, which can be used to relate between Mico scale and Macro scale. Subsequently, an incremental formulation of the unit cell  method will be considered taking into account the evolution of plasticity and damage. The implementation of investigated approach will be achieved through finite element code and the validation of the model will be considered in the case of a quasi-static loading.