摘要
研究了由两个不同压电材料和一半无限长电极组成的复合材料系统的广义二维问题· 基于Stroh公式,提供了当一个线力、线电荷和一个线电偶极子施加在电极端附近时,精确的Green函数解· 进一步地,获得了相应的场强度系数· 这些结果可作为边界元的基本解。
The generalized 2-D problem of a half-infinite interfacial electrode layer between two arbitrary piezoelectric half-spaces is studied. Based on the Stroh formalism, exact expressions for the (Green's) functions of a line force, a line charge and a line electric dipole applied at an arbitrary point near the electrode edge,were presented, respectively. The corresponding solutions for the intensity factors of fields were also obtained in an explicit form. These results can be used as the foundational solutions in boundary element method (BEM) to solve more complicated fracture problems of piezoelectric composites.
出处
《应用数学和力学》
CSCD
北大核心
2005年第2期215-221,共7页
Applied Mathematics and Mechanics
基金
德国洪堡基金资助项目
关键词
压电复合材料
内电极
GREEN函数
耦合场
piezoelectric material
internal electrode
Green's function
coupled field
