Dynamic fracture mechanics study of an electrically impermeable mode III crack in a transversely isotropic piezoelectric material under pure electric load

被引：0
|
作者：
Z. T. Chen
机构：
[1] University of New Brunswick,Department of Mechanical Engineering
来源：
International Journal of Fracture | 2006年 / 141卷
关键词：
Piezoelectric materials; Stress intensity factor; Electric load; Energy release rate; Mechanical strain energy;
D O I：
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中图分类号：
学科分类号：
摘要：
The dynamic response of an electrically impermeable Mode III crack in a transversely isotropic piezoelectric material under pure electric load is investigated by treating the electric loading process as a transient impact load, which may be more appropriate to mimic the real service environment of piezoelectric materials. The stress intensity factor, the mechanical energy release rate, and the total energy release rate are derived and expressed as a function of time for a given applied electric load. The theoretical results indicate that a purely electric load can fracture the piezoelectric material if the stress intensity factor or the mechanical energy release rate is used as a failure criterion.
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页码：395 / 402
页数：7
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