Analysis of general stress and displacement in piezoelectric ceramics with an elliptic hole

作者：Zhou, Zhi Dong; Zhao, She Xu; Kuang, Zhen Bang^*

来源：Journal of Shanghai Jiaotong University, 2004, 38(8): 1403-1407.

• Complex potential
• Concentrated force
• Elliptic holes
• General stress

Considering exact electric boundary conditions on the hole surface, the explicit and closed-form expressions of general stress function and displacement in the medium were presented on the basis of the general stress and displacement expressions. When the elliptic hole is reduced to a main crack, the solution for the conductive crack is obtained. It is shown that the present solution is a more general result for practical piezoelectric components. Furthermore, the general stress distribution was given on the rim of the elliptic hole induced by ferroelectric domain switching, which is very important for researching the toughening in ferroelectrics due to domain switching.

• 出版日期2004
• 单位上海交通大学