The proper generalized decomposition for the simulation of delamination using cohesive zone model
Article dans une revue avec comité de lecture
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.
Fichier(s) constituant cette publication
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Visualiser des documents liés par titre, auteur, créateur et sujet.
A multiscale separated representation to compute the mechanical behavior of composites with periodic microstructure Article dans une revue avec comité de lectureThe requirements for advanced numerical computations are very high when studying the multiscale behavior of heterogeneous structures such as composites. For the description of local phenomena taking place on the microscopic ...
Article dans une revue avec comité de lectureMETOUI, Sondes; PRULIERE, Etienne; AMMAR, Amine; DAU, Frédéric (Elsevier, 2018)This article presents an efficient numerical strategy to simulate the damage in composite laminates under low velocity impact. The proposed method is based on a separated representation of the solution in the context of ...
Communication sans actePRULIERE, Etienne; METOUI, Sondes (Young Investigators Conference, 2013)This paper explores an alternative to shell computation. The proposed strategy uses the Proper Generalized Methods based on a separated representation. The idea is to solve the full 3D solid problem separating the in-plane ...
Article dans une revue avec comité de lecturePRULIERE, Etienne; CHINESTA, Francisco; AMMAR, Amine; LEYGUE, Adrien; POITOU, Arnaud (Elsevier, 2012)This paper addresses two issues usually encountered when simulating thermal processes in forming processes involving tape-type geometries, as is the case of tape or tow placement, surface treatments, / The first issue ...
On the deterministic solution of multidimensional parametric models using the Proper Generalized Decomposition Article dans une revue avec comité de lecturePRULIERE, Etienne; CHINESTA, Francisco; AMMAR, Amine (2010)This paper focuses on the efficient solution of models defined in high dimensional spaces. Those models involve numerous numerical challenges because of their associated curse of dimensionality. It is well known that in ...