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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.v6.i3.40
pages 233-250

A Multiscale Computational Approach with Field Transfer Dedicated to Coupled Problems

David Dureisseix
Laboratoire de Mécanique et Génie Civil (LMGC), Laboratoire de Micromécanique et d'lntégrité des Structures (MIST), IRSN DPAM, CNRS UMR 5508, University Montpellier 2, F-34095 Montpellier CEDEX 5, France
David Neron
LMT-Cachan (ENS Cachan / CNRS / University Paris 6), 61, avenue du President Wilson, F-94235 Cachan CEDEX, France

ABSTRACT

This article deals with a computational strategy suitable for the simulation of coupled problems, in the presence of heterogeneities and when different precision levels are required for the different physics. To deal with micro heterogeneities, an adaptation of the classical periodic homogenization procedure is used, with the asymptotic development approach, but only one direction of periodicity can be taken into account. The application concerns an axisymmetric reinforced filtration device, modeled as a steady state thermoporoelastic structure, for which thermal and fluid problems are described only at the (homogenized) macroscopic level, while the structure is described up to the microscale. The relocalization has to take edge effects into account since scales are not well separated. The influence of the discretization on the microscale is studied numerically.