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电磁弹性复合材料双圆柱夹杂问题
引用本文:张敬周,王旭,仲政.电磁弹性复合材料双圆柱夹杂问题[J].上海力学,2002,23(3):373-379.
作者姓名:张敬周  王旭  仲政
作者单位:同济大学固体力学教育部重点实验室,同济大学固体力学教育部重点实验室,同济大学固体力学教育部重点实验室 同济大学工程力学与技术系,上海 200092,同济大学工程力学与技术系,上海 200092,同济大学工程力学与技术系,上海 200092
基金项目:国家杰出青年科学基金(10124209),国家自然科学基金(10072041),高等学校优秀青年教师教学科研奖励基金
摘    要:研究了双圆柱压电夹杂嵌于无限大压磁基体中的力学问题,获得了基体受到无究远处电,磁,力载荷作用下的解析解。利用复变函数呆角变换和解析延拓,以及圆环域内的洛朗级数展开和Cauchy积分公式等得到了基体和两个夹杂中的复位势。由所获得的复位势继而得到了应力,电位移和磁通密度等物理量的解析表达式。并给出了算例分析,以此来表明夹杂对系统电磁弹性耦合行为的影响,以及验证所得解的正确性和实用性。

关 键 词:电磁弹性  复合材料  双圆柱夹杂  压磁效应  压电效应  电磁耦合效应  复变函数  复位势
修稿时间:2002年7月15日

Double Circular Cylindrical Inclusions in a Magnetoelectroelastic Composite Material
ZHANG Jing-zhou,WANG Xu,ZHONG Zheng.Double Circular Cylindrical Inclusions in a Magnetoelectroelastic Composite Material[J].Chinese Quarterly Mechanics,2002,23(3):373-379.
Authors:ZHANG Jing-zhou  WANG Xu  ZHONG Zheng
Abstract:In this paper, an analytical solution in series form for the problem of double circular cylindrical piezoelectric inclusions embedded in an infinite piezomagnetic matrix is presented. The matrix is subjected to remote magneto-electro-mechanical loading. The solution of complex potentials is obtained by applying complex conformal mapping, analytical continuation, Laurent's series expansion in an annular ring region and Cauchy integal formulae, etc. Based on the obtained complex potentials, explicit expressions for the stress, electric displacement and magnetic induction in the matrix and the two circular cylindrical inclusions are also derived. A numerical investigation is performed to illustrate the influence of inclusions on the system's magnetoelectroelastic coupling behavior and also to verify the correctness and usefulness of the solution.
Keywords:piezomagnetic effect  piezoelectric effect  piezoelectric/piezomagnetic composites  electromagnetic coupling effect  double circular cylindrical inclusion
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