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Published June 14, 2000 | Published
Book Section - Chapter Open

Viscoelectroelastic behavior of heterogeneous piezoelectric solids

Abstract

We study the viscoelectroelastic behavior of heterogeneous piezoelectric solids, focusing on the connection between heterogeneity and coupled mechanical and electrical relaxations. Our approach is based on the existence of a correspondence between quasistatic viscoelectroelasticity and static piezoelectricity when linear constitutive response exists. We couple this correspondence principle with micromechanics models to predict the overall behavior of heterogeneous piezoelectric solids in terms of microstructural details. We devote specific attention to a class of two-phase materials consisting of a lossless piezoelectric phase embedded in a lossy matrix and obtain closed form expressions for the effective complex electroelastic moduli. Numerical results are presented and discussed, and reasonable agreement with experiment is observed.

Additional Information

© 2000 Society of Photo-Optical Instrumentation Engineers (SPIE). The support of the National Science Foundation (grant number CMS 940-9840) is gratefully acknowledged. We are also grateful to Dr. Hassel Ledbetter and Mr. Sudook Kim of NIST, Boulder for help with the measurements and Dr. Donald Radford and Mr. Fu of Colorado State University for help fabricating the composite specimens.

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August 19, 2023
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