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Dissipation inequality-based periodic homogenization of wavy materials

Article dans une revue avec comité de lecture
Author
TSALIS, Dimitrios
CHATZIGEORGIOU, George
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
TSAKMAKIS, Charalampos
CHARALAMBAKIS, Nicolas

URI
http://hdl.handle.net/10985/10050
DOI
10.1016/j.compositesb.2015.02.014
Date
2015
Journal
Composites Part B: Engineering

Abstract

In this paper we present an internal variable-based homogenization of a composite made of wavy elastic-perfectly plastic layers. In the context of a strain-driven process, the macrostress and the effective yield surface are expressed in terms of the residual stresses, which act as hardening parameters in the effective behavior of the composite. Moreover, an approximate two-steps homogenization scheme useful for composites made of matrix with wavy inclusions is proposed and a comparison with one computational and one semi-analytical homogenization method is presented.

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