Recherche d'un modèle simplifié de poutre multicouche en grandes transformations
Résumé
The estimation of stresses at interfaces is needed in order to forecast the phenomenon of delamination in composite materials. It is developed a systematical method to obtain simplifed models of multi-layered beam in large transformations, where generalized stresses with physical meaning and in particular shearing and wrenching at interfaces are introduced. Both, the transformation and the second Piola-Kirchhoff stress tensor are approximated.
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