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Micro/Macro-Analysis of Lamellart Composites Based on Discrete Dislocation Plasticity and Periodic Homogenization

D. OKUMURA, K. YAMAGUCHI, N. OHNO

Abstract


In this study, micro/macro-analysis of periodic lamellar composites consisting of elastic and elastic-plastic layers is performed using a discrete dislocation plasticity approach [1]. In this approach, periodic lamellar composites are assumed to be subjected to macroscopic uniform deformation described by macroscopic stress ï“ij and/or macroscopic strain Eij, and to be defined by infinitely periodic arrangements of a periodic unit V. Here elastic and elastic-plastic layers are regarded as inclusions VI and matrices VM, respectively, which are assumed to be isotropic elastic materials, but the motion of dislocations is allowed in the matrix area.

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