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题名:
Application of hypersingular integral equation method to three-dimensional crack in electromagnetothermoelastic multiphase composites
作者: Zhu BJ(朱伯靖)1,2; Qin Taiyan1
刊名: INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
出版日期: 2007-09
卷号: 44, 期号:18-19, 页码:5994-6012
DOI: 10.1016/j.ijsolstr.2007.02.007
学科分类: 力学 ; 力学::物理力学
收录类别: SCI
通讯作者: Qin Taiyan, tyqin@cau.edu.cn
关键词: electromagnetothermoelastic multiphase composites ; three-dimensional cracks ; hypersingular integral equations ; boundary ; element method ; extended stress intensity factors
英文摘要: A three-dimensional crack problem in electromagnetothermoelastic multiphase composites (EMTE-MCs) under extended loads is investigated in this paper. Using Green’s functions, the extended general displacement solutions are obtained by the boundary element method. This crack problem is reduced to solving a set of hypersingular integral equations coupled with boundary integral equations, in which the unknown functions are the extended displacement discontinuities. Then, the behavior of the extended displacement discontinuities around the crack front terminating at the interface is analyzed by the main-part analysis method of hypersingular integral equations. Analytical solutions for the extended singular stresses, the extended stress intensity factors (SIFs) and the extended energy release rate near the crack front in EMTE-MCs are provided. Also, a numerical method of the hypersingular integral equations for a rectangular crack subjected to extended loads is put forward with the extended displacement discontinuities approximated by the product of basic density functions and polynomials. In addition, distributions of extended SIFs varying with the shape of the crack are presented. The results show that the present method accurately yields smooth variations of extended SIFs along the crack front.
语种: 英语
原文出处: 查看原文
ISSN号: 0020-7683
文章类型: Article
研究领域[WOS]: Mechanics
类目[WOS]: Mechanics
关键词[WOS]: HOMOGENEOUS MAGNETIC-FIELD ; ELECTROMAGNETIC THERMOELASTIC SOLIDS ; SOFT FERROMAGNETIC MATERIALS ; STRESS-STRAIN STATE ; GREENS-FUNCTIONS ; MAGNETOELECTROELASTIC MATERIALS ; MAGNETOELASTIC PROBLEM ; INHOMOGENEITY PROBLEMS ; INITIATION BEHAVIOR ; ELLIPTIC CRACK
WOS记录号: WOS:000249214700011
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内容类型: 期刊论文
URI标识: http://ir.ynao.ac.cn/handle/114a53/12329
Appears in Collections:非本单位_期刊论文

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作者单位: 1.College of Science, China Agricultural University, Beijing 100083, PR China
2.College of Mechanical Engineering, South China University of Tropical Agriculture, Danzhou 571737, PR China

Recommended Citation:
Zhu BJ,Qin Taiyan. Application of hypersingular integral equation method to three-dimensional crack in electromagnetothermoelastic multiphase composites[J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,2007,44(18-19):5994-6012.
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