A crack in a confocal elliptic piezoelectric inhomogeneity embedded in an infinite piezoelectric medium

被引：6
作者：
Wu, LZ [1 ]
机构：
[1] Harbin Inst Technol, Sch Astronaut, Harbin 150001, Peoples R China
来源：
INTERNATIONAL JOURNAL OF FRACTURE | 2000年 / 104卷 / 01期
基金：
中国国家自然科学基金;
关键词：
piezoelectric medium; crack; inhomogeneity; crack extension force; conformal mapping;
D O I：
10.1023/A:1007679627016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An effective method is developed and used to investigate the elastic field and the electric field of a crack in a confocal elliptic piezoelectric inhomogeneity embedded in an infinite piezoelectric medium. The matrix is subjected to the remote antiplane shear and inplane electric field. The analytical solution is obtained using the conformal mapping and the theorem of analytic continuation. Specific solutions which are compared with existing ones are provided. The characteristics of the elastic field and electric field singularities at the crack tip are analyzed and the corresponding crack extension forces are derived.
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页码：1 / 14
页数：14
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