A crack along a part of an interface electrode in a piezoelectric bimaterial under anti-plane mechanical and in-plane electric loadings

2019 ◽  
Vol 230 (6) ◽  
pp. 1999-2012 ◽  
Author(s):  
V. Govorukha ◽  
A. Sheveleva ◽  
M. Kamlah
Keyword(s):  
Piezoelectric Bimaterial

scholarly journals Interaction of Screw Dislocation with Edge Interfacial Crack on Fine-Grained Piezoelectric Coating/Substrate

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Shuaishuai Hu ◽  
Jiansheng Liu ◽  
Junlin Li ◽  
Xiufeng Xie
Keyword(s):  
Screw Dislocation ◽  
Interfacial Crack ◽  
Mapping Function ◽  
Image Force ◽  
Infinite Plane ◽  
Principle Of Superposition ◽  
Fine Grained ◽  
Substrate Structure ◽  
Piezoelectric Bimaterial ◽  
The Right

The interaction between micro- and macrocracks in a fine-grained piezoelectric coating/substrate under remote antiplane mechanical and in-plane electrical loadings was studied. The principle of superposition and a mapping function method was used to transform the fine-grained coating/substrate structure containing the screw dislocation and the edge interfacial crack into the right semi-infinite plane piezoelectric bimaterial with screw dislocation to simplify the problem. Furthermore, the electric field, displacement field, intensity factors, and image force of these two problems were established. In addition, numerical calculations were then given graphically to study the effects of the elastic modulus of the material, the size of the crack, the thickness of the coating, and the screw dislocation angle on the edge interface crack and dislocation.

A dielectric breakdown model for an interface crack in a piezoelectric bimaterial

2020 ◽  
Vol 15 (1) ◽  
pp. 87-105
Author(s):  
Yuri Lapusta ◽  
Alla Sheveleva ◽  
Frédéric Chapelle ◽  
Volodymyr Loboda
Keyword(s):  
Interface Crack ◽  
Dielectric Breakdown ◽  
Piezoelectric Bimaterial ◽  
Breakdown Model ◽  
Dielectric Breakdown Model
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