Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4743
Title: Effective properties of spherically anisotropic piezoelectric composites
Authors: Gu, GQ
Wei, EB
Poon, YM
Shin, FG
Keywords: Composite materials
Elasticity
Inclusions
Permittivity
Piezoceramics
Piezoelectricity
Issue Date: 1-Aug-2007
Publisher: American Physical Society
Source: Physical review B, condensed matter and materials physics, 1 Aug. 2007, v. 76, no. 6, 064203, p. 1-6 How to cite?
Journal: Physical review B 
Abstract: Piezoelectric composites consisting of spherically anisotropic piezoelectric inclusions (i.e., piezoceramic material) in an infinite nonpiezoelectric matrix under a uniform electric field are theoretically investigated. Analytical solutions for the elastic displacements and the electric potentials are derived exactly. Taking account of the coupling effects of elasticity, permittivity, and piezoelectricity, formulas are derived for the effective dielectric and piezoelectric responses in the dilute limit. A piezoelectric response mechanism is revealed, in which the effective piezoelectric response vanishes irrespective of how much spherically anisotropic piezoelectric inclusions are inside. Moreover, the effective coupled responses of the piezoelectric composites show that the effective dielectric responses decrease (increase) as the inclusion elastic (piezoelectric) constants increase.
URI: http://hdl.handle.net/10397/4743
ISSN: 1098-0121 (print)
1550-235X (online)
DOI: 10.1103/PhysRevB.76.064203
Rights: Physical Review B © 2007 The American Physical Society. The Journal's web site is located at http://prb.aps.org/
Appears in Collections:Journal/Magazine Article

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