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

• Articles • Previous Articles     Next Articles

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   

  1. 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

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.

2010 MSC Number: 

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