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http://hdl.handle.net/10397/4743
| Title: | Effective properties of spherically anisotropic piezoelectric composites | Authors: | Gu, GQ Wei, EB Poon, YM Shin, FG |
Issue Date: | 1-Aug-2007 | Source: | Physical review. B, Condensed matter and materials physics, 1 Aug. 2007, v. 76, no. 6, 064203, p. 1-6 | 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. | Keywords: | Composite materials Elasticity Inclusions Permittivity Piezoceramics Piezoelectricity |
Publisher: | American Physical Society | Journal: | Physical review. B, Condensed matter and materials physics | ISSN: | 1098-0121 | EISSN: | 1550-235X | 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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| Gu_Spherically_Anisotropic_Piezoelectric.pdf | 178.63 kB | Adobe PDF | View/Open |
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