ON THE ELECTROELASTIC INTERACTION OF A PIEZOELECTRIC SCREW DISLOCATION WITH AN ELLIPTICAL INCLUSION IN PIEZOELECTRIC MATERIALS

Applied Mathematics and Mechanics (English Edition) ›› 2000, Vol. 21 ›› Issue (11): 1314-1319.

ON THE ELECTROELASTIC INTERACTION OF A PIEZOELECTRIC SCREW DISLOCATION WITH AN ELLIPTICAL INCLUSION IN PIEZOELECTRIC MATERIALS

刘金喜, 姜稚清, 冯文杰

Department of Mechanics and Engineering, Shijiazhuang Railway Institute, Shijiazhuang 050043, P R China

收稿日期:1999-05-26 修回日期:2000-05-23 出版日期:2000-11-18 发布日期:2000-11-18

ON THE ELECTROELASTIC INTERACTION OF A PIEZOELECTRIC SCREW DISLOCATION WITH AN ELLIPTICAL INCLUSION IN PIEZOELECTRIC MATERIALS

LIU Jin-xi, JIANG Zhi-qing, FENG Wen-jie

Department of Mechanics and Engineering, Shijiazhuang Railway Institute, Shijiazhuang 050043, P R China

Received:1999-05-26 Revised:2000-05-23 Online:2000-11-18 Published:2000-11-18

摘要/Abstract

摘要： The electroelastic interaction of a piezoelectric screw dislocation with an elliptical inclusion in piezoelectric materials is considered. The electroelastic fields in both the matrix and the inclusion were given explicitly by using the perturbation concept and the method of Laurent series expansion. Furthermore, the expressions of the image force acting on a piezoelectric screw disolcation were obtained. Numerical examples are provided to reveal the effect of piezoelectricity and the relative stiffness between the inclusion and the matrix on the image force. Consequently, the new interaction mechanism is found.

Abstract: The electroelastic interaction of a piezoelectric screw dislocation with an elliptical inclusion in piezoelectric materials is considered. The electroelastic fields in both the matrix and the inclusion were given explicitly by using the perturbation concept and the method of Laurent series expansion. Furthermore, the expressions of the image force acting on a piezoelectric screw disolcation were obtained. Numerical examples are provided to reveal the effect of piezoelectricity and the relative stiffness between the inclusion and the matrix on the image force. Consequently, the new interaction mechanism is found.

中图分类号:

刘金喜;姜稚清;冯文杰. ON THE ELECTROELASTIC INTERACTION OF A PIEZOELECTRIC SCREW DISLOCATION WITH AN ELLIPTICAL INCLUSION IN PIEZOELECTRIC MATERIALS[J]. Applied Mathematics and Mechanics (English Edition), 2000, 21(11): 1314-1319.

LIU Jin-xi;JIANG Zhi-qing;FENG Wen-jie. ON THE ELECTROELASTIC INTERACTION OF A PIEZOELECTRIC SCREW DISLOCATION WITH AN ELLIPTICAL INCLUSION IN PIEZOELECTRIC MATERIALS[J]. Applied Mathematics and Mechanics (English Edition), 2000, 21(11): 1314-1319.

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ON THE ELECTROELASTIC INTERACTION OF A PIEZOELECTRIC SCREW DISLOCATION WITH AN ELLIPTICAL INCLUSION IN PIEZOELECTRIC MATERIALS

ON THE ELECTROELASTIC INTERACTION OF A PIEZOELECTRIC SCREW DISLOCATION WITH AN ELLIPTICAL INCLUSION IN PIEZOELECTRIC MATERIALS

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