METOUI, Sondes; PRULIERE, Etienne; AMMAR, Amine; DAU, Frederic; IORDANOFF, Ivan

doi:10.1002/nme.4732

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METOUI, Sondes
Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]

PRULIERE, Etienne

AMMAR, Amine
Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]

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International Journal for Numerical Methods in Engineering. 2014-09, vol. 99, n° 13, p. 1000-1022

Wiley

Résumé en anglais

The use of cohesive zone models is an efficient way to treat the damage, especially when the crack path is known a priori. This is the case in the modeling of delamination in composite laminates. However, the simulations using cohesive zone models are expensive in a computational point of view. When using implicit time integration scheme or when solving static problems, the non-linearity related to the cohesive model requires many iterations before reaching convergence. In explicit approaches, the time step stability condition also requires an important number of iterations. In this article, a new approach based on a separated representation of the solution is proposed. The Proper Generalized Decomposition is used to build the solution. This technique, coupled with a cohesive zone model, allows a significant reduction of the computational cost. The results approximated with the PGD are very close to the ones obtained using the classical finite element approach.< Réduire

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proper generalized decomposition

cohesive zone model

composite laminates

delamination

interface fracture

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The proper generalized decomposition for the simulation of delamination using cohesive zone model

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