Stratégie non-intrusive de couplage plaque/3D pour la simulation des assemblages de plaques composites stratifiées

This thesis is part of the nonintrusive coupling methods framework which allow to merge to kind of software : general commercial software and dedicated software.The aim is to apply such coupling for the analysis of assembly of laminated plates.In fact, the behavior in composite material around critical zones requires to take in account complex phenomena (in 3D), whereas the industrial way of work is to simplify the structure with plate or shell model in order to handle very large structures.The nonintrusive coupling method developed here allow to virtually apply a 3D patch to the plate model in order to enriched the global description without any modification of the global meshes, models, or solver.Various methods of coupling and improvement to the classical nonintrusive coupling are proposed.