ANALYSIS OF EFFECTIVE PROPERTIES OF PIEZOCOMPOSITES BY THE SUBREGION BEM-MORI-TANAKA APPROACH

Authors

  • Grzegorz Dziatkiewicz Silesian University of Technology

Keywords:

boundary element method, coupled fields, piezoelectric materials, homogenization, material properties

Abstract

Recently, many approaches have been proposed to estimate the effective properties of composites. The most typical are: the self-consistent method and the Mori-Tanaka method. However, they are restricted to simple geometries of phases. Also for complex constitutive laws the analytical results are complicated. On the other hand, the combination of numerical methods and these approaches gives an efficient computational scheme for estimating effective properties of composite materials. In this paper the hybrid subregion boundary element method (BEM) and Mori-Tanaka approach is implemented to solve coupled field equations of linear piezocomposites in the unit cell approach and then to determine the effective properties . To obtain the BEM fundamental solutions, the Stroh formalism is used. The numerical examples demonstrate an effectiveness of the BEM-Mori-Tanaka approach.

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References

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Published

2011-12-19

Issue

Vol. 30 No. 4 (2011)

Section

Articles

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