Elastic properties of spherically anisotropic piezoelectric composites

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	Elastic properties of spherically anisotropic piezoelectric composites
	Wei EB(魏恩泊); Gu GQ(顾国庆); Pan YM(潘英明)
发表期刊	Chinese Physics B
ISSN	1674-1056
	2010-09-15
出版年	2010
卷号	v.19 期号:09 页码:458-467
文献类型	CNKI期刊论文
摘要	Effective elastic properties of spherically anisotropic piezoelectric composites, whose spherically anisotropic piezo-electric inclusions are embedded in an infinite non-piezoelectric matrix, are theoretically investigated. Analytical solutions for the elastic displacements and the electric potentials under a uniform external strain are derived exactly. Taking into account of the coupling effects of elasticity, permittivity and piezoelectricity, the formula is derived for estimating the effective elastic properties based on the average field theory in the dilute limit. An elastic response mechanism is revealed, in which the effective elastic properties increase as inclusion piezoelectric properties increase and inclusion dielectric properties decrease. Moreover, a piezoelectric response mechanism, of which the effective piezoelectric response vanishes due to the symmetry of spherically anisotropic composite, is also disclosed.
关键词	elasticity, piezoelectric composites, spherically anisotropy
CNKI专辑号	A;B;
CNKI专辑名称	基础科学;工程科技Ⅰ辑;
CNKI专题号	B020;
CNKI专题名称	材料科学;
分类号	TB332
收录类别	中科院核心
语种	英文;
资助项目(基金）	supported by the Centre for Smart Materials of the Hong Kong Polytechnic University and a RGC Grant PolyU5015/06P(internal code B-Q996) of the HKSAR ; the National Natural Science Foundation of China (Grant Nos.10374026 and40876094)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/191974
专题	中国科学院海洋研究所
作者单位	1.InstituteofOceanologyandKLOCW,ChineseAcademyofSciences 2.SchoolofInformationScienceandTechnology,EastChinaNormalUniversity 3.DepartmentofAppliedPhysicsandMaterialsResearchCentre,TheHongKongPolytechnicUniversity
推荐引用方式 GB/T 7714	Wei EB,Gu GQ,Pan YM. Elastic properties of spherically anisotropic piezoelectric composites. 2010.