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International Journal for Multiscale Computational Engineering
IF: 1.016 5-Year IF: 1.194 SJR: 0.452 SNIP: 0.68 CiteScore™: 1.18

ISSN Print: 1543-1649
ISSN Online: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.v9.i1.30
pages 17-33

COUPLING FINITE ELEMENTS AND PROPER GENERALIZED DECOMPOSITIONS

A. Ammar
Arts et Metiers Paris Tech 2 Boulevard du Ronceray, BP 93525, F-49035 Angers Cedex 01, France
F. Chinesta
EADS Corporate Foundation International Chair, GeM: UMR CNRS-Ecole Centrale de Nantes, 1 rue de la Noe, BP 92101, F-44321 Nantes Cedex 3, France
Elias Cueto
Group of Structural Mechanics and Materials Modelling (GEMM), Aragon Institute of Engineering Research (I3A), Betancourt Building, Maria de Luna, 5, E-50018 Zaragoza, Spain

ABSTRACT

Numerous models encountered in science and engineering exist, despite the impressive recent progresses attained in computational simulation techniques, intractable when the usual and experienced discretization techniques are applied for their numerical simulation. Thus, different challenging issues remain for the proposal of new alternative advanced simulation techniques. Separated representations offer the possibility to address some challenging models with CPU time savings of some orders of magnitude. In other cases, they allowed models to be addressed which until now, have never been solved. The number of published works concerning this kind of approximation remains quite reduced, and then numerous difficulties that were successfully circumvented in the context of more experienced discretization techniques, as is the case of the finite element method, must be considered again within the separated representation framework. One of these issues in the one that concerns the treatment of localized behavior of model solutions. This work focuses on this topic and proposes an efficient finite element (or extended finite element) enrichment of usual separated representation.

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