Fatigue crack analysis in piezoelectric specimens by a single-domain BEM

被引：11

作者：

Lei, Jun ^{[1
]}

Chen, Yuling ^{[1
]}

Tinh Quoc Bui ^{[2
]}

Zhang, Chuanzeng ^{[3
]}

机构：

[1] Beijing Univ Technol, Dept Engn Mech, Beijing 100124, Peoples R China

[2] Tokyo Inst Technol, Dept Civil & Environm Engn, Meguro Ku, 2-12-1-W8-22 Ookayama, Tokyo 1528552, Japan

[3] Univ Siegen, Dept Civil Engn, D-57068 Siegen, Germany

来源：

ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2019年 / 104卷

关键词：

Hoop mechanical energy release rate; Fatigue crack; Piezoelectric; Single-domain BEM; Paris' law; BOUNDARY-ELEMENT ANALYSIS; FRACTURE-MECHANICS; NUMERICAL-SIMULATION; GROWTH; PROPAGATION; SOLIDS; FORMULATION; STATIONARY; CERAMICS; BEHAVIOR;

D O I：

10.1016/j.enganabound.2019.03.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the fatigue crack problems in piezoelectric materials under cyclic mechanical loading or alternating electric field were analyzed by a single-domain boundary element method. To determine the direction of the crack propagation, the fracture criteria of maximum of hoop mechanical strain energy release rate was used. Meanwhile, for evaluating the remaining life of the cracked piezoelectric specimens, the Paris-type laws based on different fracture parameters were employed and compared. All the involved fracture parameters were computed by the interaction integral method. Numerical examples were considered and analyzed for cyclic mechanical and electrical loadings, respectively. The comparisons showed the efficiency of the present BEM program in analyzing fatigue cracks and the choice of the effective fracture parameter in Paris' law for life prediction.

引用

页码：71 / 79

页数：9

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