A decoupled strategy to solve reduced-order multimodel problems in the PGD and Arlequin frameworks
In this paper, we investigate the coupling of reduced models for the simulation of structures involving localized geometrical details. Herein, we use the Arlequin method, originally designed to deal with multimodel and multiscale analyses of mechanical problems, to mix reduced models built using the proper generalized decomposition. Instead of solving the global coupled problem in a monolithic way, the LATIN strategy is used to propose a decoupled algorithm. The numerical examples demonstrate the feasibility of the approach and in particular its potentiality in terms of flexibility.
KeywordsReduced-order modeling PGD Multimodel Multiscale Arlequin LATIN
The authors want to thank the French National Centre for Scientific Research (CNRS) and the French National Research Agency (projet number ANR-14-CE07-0007 CouESt) for the fundings provided to this work. The numerical simulations were performed using the routines CArl, freely available at https://github.com/cottereau/CArl.
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