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International Journal for Multiscale Computational Engineering
Fator do impacto: 1.016 FI de cinco anos: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN Imprimir: 1543-1649
ISSN On-line: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.2012002587
pages 281-293

AVERAGING PROPERTIES FOR PERIODIC HOMOGENIZATION AND LARGE DEFORMATION

Mohamed Ben Bettaieb
ArGEnCo Department, MS2F Division, University of Liege, Chemin des Chevreuils 1, 4000 Liege, Belgium
Olivier Debordes
LMA & ECM, IMT, Technopole Chateau-Gombert, F13383 Marseille Cedex 13, France
Abdelwaheb Dogui
LGM, ENIM, 5019 Monastir, Tunisia
Laurent Duchene
ArGEnCo Department, MS2F Division, University of Liege, Chemin des Chevreuils 1, 4000 Liege, Belgium

RESUMO

The main motivation of this paper consists of using the periodic homogenization theory to derive several relations between macroscopic Lagrangian (e.g., deformation gradient, Piola−Kirchhoff tensor) and Eulerian (e.g., velocity gradient, Cauchy stress) quantities. These relations demonstrate that these macroscopic quantities behave formally in the same way as their microscopic counterparts. We say therefore that these relations are stable with respect to the periodic homogenization. We also demonstrate the equivalence between the two forms of the macroscopic power density expressed in the Lagrangian and Eulerian formulations. Two simple examples illustrate these results, and indicate also that the Green−Lagrange strain tensor and the second Piola−Kirchhoff stress tensor are not stable with respect to periodic homogenization.

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