A study of finite size effects on cracked 2-D piezoelectric media using extended finite element method

被引：38

作者：

Bhargava, R. R. ^{[1
]}

Sharma, Kuldeep ^{[1
]}

机构：

[1] Indian Inst Technol Roorkee, Dept Math, Roorkee 247667, Uttar Pradesh, India

来源：

COMPUTATIONAL MATERIALS SCIENCE | 2011年 / 50卷 / 06期

关键词：

Crack; Electric-displacement intensity factor; Extended finite element method; Interaction integral; Piezoelectric ceramics; Stroh formalism; FRACTURE-MECHANICS; PERMEABLE CRACKS; GROWTH; PROPAGATION; COMPUTATION; INTEGRALS;

D O I：

10.1016/j.commatsci.2011.01.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The extended finite element method is applied on the two-dimensional (2-D) finite piezoelectric media weakened by a crack. The fourfold standard enrichment functions are taken in conjugation with the interaction integral to evaluate the intensity factors. Four sequence of analysis, namely crack-mesh alignment, aspect ratio, mesh with local refinement and domain independency is done on the center and edge crack problems. These four analyses when combined together give an optimum result to study the finite specimen. It is observed that for smaller values of strip width to crack length ratio the finiteness of the specimen size affects the intensity factors. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1834 / 1845

页数：12

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