Modeling of Thermo-Electro-Elastic Effective Behaviors of Piezoelectric Composite Mediums and Analysis of Reinforcement Orientation Effects
In this paper a thermo-electro-elastic modeling for piezoelectric inclusions in an infinite non-piezoelectric matrix is proposed. Extension of the heterogeneous inclusion problem of Eshelby for elastic to electroelastic behavior is formulated in terms of four interaction tensors. These tensors are basically used to derive the self-consistent model and Mori-Tanaka approaches for ellipsoidal piezoelectric inclusions. Solutions are based on numerical computations of these tensors for various types of inclusions. Using the obtained results, effective thermo-electro-elastic moduli of piezoelectric multiphase composites are investigated by an iterative procedure in the context of self-consistent scheme. The influence of the pooling direction effect on the thermo-electro-elastic coefficients is studied and several numerical tests of Ceramic/Epoxy composites are investigated.
Key wordsmicromechanical models interaction tensors concentration tensors heterogeneous inclusion piezoelectric material thermo-electro-elastic
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