Fracture of piezoelectromagnetic materials

被引：145

作者：

Wang, BL

Mai, YW ^{[1
]}

机构：

[1] Univ Sydney, Sch Aerosp Mech & Mechatron Engn J07, CAMT, Sydney, NSW 2006, Australia

[2] City Univ Hong Kong, Dept Mfg Engn & Engn, Kowloon, Hong Kong, Peoples R China

来源：

MECHANICS RESEARCH COMMUNICATIONS | 2004年 / 31卷 / 01期

基金：

澳大利亚研究理事会; 中国国家自然科学基金;

关键词：

fracture mechanics; piezoelectric; piezomagnetic; magnetoelectrociastic; crack;

D O I：

10.1016/j.mechrescom.2003.08.002

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The crack problem in a medium possessing coupled piezoelectric, piezomagnetic and magnetoelectric effects is considered. A conservative integral is derived based on the governing equations for magnetoelectroelastic media. Closed-form solution is obtained for an anti-plane crack in an infinite medium. The conservative integral is used to obtain the path-independent integral near the crack tip. Expressions for stresses, electric displacements and magnetic inductions in the vicinity of a crack tip are derived. It is found that the path-independent integral around the crack tip equals the energy release rate. In the absence of applied mechanical loads, the energy release rate is always negative. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：65 / 73

页数：9

共 15 条

[1] ON THE EXISTENCE OF SURFACE-WAVES IN HALF-INFINITE ANISOTROPIC ELASTIC MEDIA WITH PIEZOELECTRIC AND PIEZOMAGNETIC PROPERTIES [J].

ALSHITS, VI ;

DARINSKII, AN ;

LOTHE, J .

WAVE MOTION, 1992, 16 (03) :265-283

[2] MAGNETOELECTRIC EFFECT IN PIEZOELECTRIC MAGNETOSTRICTIVE MULTILAYER (2-2) COMPOSITES [J].

AVELLANEDA, M ;

HARSHE, G .

JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 1994, 5 (04) :501-513

[3]

BENVENISTE Y, 1995, PHYS REV B, V51, P424

[4] THE EFFECTS OF CRACK FACE BOUNDARY-CONDITIONS ON THE FRACTURE-MECHANICS OF PIEZOELECTRIC SOLIDS [J].

DUNN, ML .

ENGINEERING FRACTURE MECHANICS, 1994, 48 (01) :25-39

[5]

Harshe G., 1993, International Journal of Applied Electromagnetics in Materials, V4, P145

[6] The analysis of piezoelectric/piezomagnetic composite materials containing ellipsoidal inclusions [J].

Huang, JH ;

Kuo, WS .

JOURNAL OF APPLIED PHYSICS, 1997, 81 (03) :1378-1386

[7] Magneto-electro-elastic Eshelby tensors for a piezoelectric-piezomagnetic composite reinforced by ellipsoidal inclusions [J].

Huang, JH ;

Chiu, YH ;

Liu, HK .

JOURNAL OF APPLIED PHYSICS, 1998, 83 (10) :5364-5370

[8] Elastically anisotropic angularly inhomogeneous media .2. The Green's function for piezoelectric, piezomagnetic and magnetoelectric media [J].

Kirchner, HOK ;

Alshits, VI .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1996, 74 (04) :861-885

[9] Micromechanics of magnetoelectroelastic composite materials: Average fields and effective behavior [J].

Li, JY ;

Dunn, ML .

JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 1998, 9 (06) :404-416

[10] Nonlinear magnetoelastic coupling effects in a soft ferromagnetic material with a crack [J].

Liang, W ;

Fang, DN ;

Shen, YP ;

Soh, AK .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2002, 39 (15) :3997-4011

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