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Article Dans Une Revue Computer Methods in Applied Mechanics and Engineering Année : 2017

An enhanced nonlinear multi-scale strategy for the simulation of buckling and delamination on 3D composite plates

Karin Saavedra
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Olivier Allix
Pierre Gosselet
J. Hinojosa
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Résumé

This paper is devoted to the study of a micro-macro LaTIn-based Domain Decomposition Method for which the partitioning, the geometry and the boundary conditions play a major role in the number of iterations to convergence and in the scalability. To confront these obstacles, an analysis of the macroscopic space and of the search direction-two parameters of the strategy-is proposed for traction, bending and buckling examples. Then, we propose a new search direction which takes into account the global stiffness of the structure and that limits the need to enrich the macroscopic space. This choice leads to a minimal number of iterations, a reduced computation time and the scalability of the strategy. The enhanced parameter is then applied to the simulation of combined buckling and delamination of a composite 3D plate.
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Dates et versions

hal-01622095 , version 1 (24-03-2021)

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Karin Saavedra, Olivier Allix, Pierre Gosselet, J. Hinojosa, A. Viard. An enhanced nonlinear multi-scale strategy for the simulation of buckling and delamination on 3D composite plates. Computer Methods in Applied Mechanics and Engineering, 2017, 317, pp.952 - 969. ⟨10.1016/j.cma.2017.01.015⟩. ⟨hal-01622095⟩
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