Balancing Domain Decomposition with Nonlinear Relocalization: Parallel Implementation for Laminates

Felipe Bordeu (1) , Pierre-Alain Boucard (1) , Pierre Gosselet (1)

1 LMT - Laboratoire de Mécanique et Technologie

Over the past thirty years, composite materials have been used increasingly in industry, especially in the aeronautical and spatial industries. Therefore, there is a great interest in the prediction of their degradation. The objective of this work is to develop a program capable of simulating structures on an industrial level using the latest models developed. In the first section, we present a review of the damage mesomodel used for the simulations. The second section presents the partition technique, and the parallel resolution technique utilized for the simulation. A new Newton loop is added to the classic algorithm to improve the performance in the case of localized nonlinearities. The third section present the implementation on a C++ home made finite element code. And the technique utilized to parallelized the problem. Finally, the forth section gives illustrations showing the level of performance which can be expected from such an approach.

Mots clés: composite material; partitioning; parallelization; domain decomposition; Newton-Krylov-Schur methods; damage

Domaines: Mécanique des structures [physics.class-ph]; Mécanique des structures [physics.class-ph]

Felipe Bordeu, Pierre-Alain Boucard, Pierre Gosselet. Balancing Domain Decomposition with Nonlinear Relocalization: Parallel Implementation for Laminates. First international conference on parallel, distributed and grid computing for engineering, Apr 2009, Pécs, Hungary. CCP: 90, paper : 4, ⟨10.4203/ccp.90.4⟩. ⟨hal-00437328⟩