Effects of electric field and poling on the mode I energy release rate in cracked piezoelectric ceramics at cryogenic temperatures

被引：2
|
作者：
Shindo, Yasuhide [1 ]
Narita, Fumio [1 ]
Sato, Masayuki [1 ]
机构：
[1] Tohoku Univ, Grad Sch Engn, Dept Mat Proc, Sendai, Miyagi 9808579, Japan
来源：
ACTA MECHANICA | 2013年 / 224卷 / 11期
基金：
日本学术振兴会;
关键词：
FRACTURE-MECHANICS; ACTUATORS;
D O I：
10.1007/s00707-013-0949-4
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We discuss the mode I energy release rate of a rectangular piezoelectric material with a crack under electromechanical loading at cryogenic temperatures. A crack was created normal or parallel to the poling direction, and electric fields were applied parallel or normal to the poling. A plane strain finite element analysis was carried out, and the effects of electric field and localized polarization switching on the energy release rate were discussed for the piezoelectric ceramics at cryogenic temperatures.
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页码：2547 / 2558
页数：12
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