Effects of magneto-electric loadings and piezomagnetic/piezoelectric stiffening on multiferroic interface fracture

被引：49

作者：

Li, Yong-Dong ^{[1
,2
]}

Lee, Kang Yong ^{[1
]}

机构：

[1] Yonsei Univ, Sch Mech Engn, Seoul 120749, South Korea

[2] Acad Armored Force Engn, Dept Mech Engn, Beijing 100072, Peoples R China

来源：

ENGINEERING FRACTURE MECHANICS | 2010年 / 77卷 / 05期

关键词：

Multiferroic composite; Piezomagnetic/piezoelectric stiffening; Magnetostriction; Electrostriction; Interface fracture; PIEZOELECTRIC SENSOR; IMPERFECT INTERFACE; CRACK; STRIP;

D O I：

10.1016/j.engfracmech.2010.01.003

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Interface fracture of a multiferroic composite is studied by the methods of integral transform and singular integral equation. Parametric studies on the stress intensity factor yield three conclusions. (a) The multiferroic composite is more likely to fracture in electric field than in magnetic field. (b) Under magnetostriction, piezomagnetic stiffening does not affect the interface crack, but the influence of piezoelectric stiffening is notable. Under electrostriction, inverse results are obtained. (c) In magnetic loading cases, the piezomagnetic layer should be softer and the piezoelectric strip stiffer: however, if electric loading is applied instead, opposite conclusion should be expected. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：856 / 866

页数：11

共 22 条

[1] Theory of magnetoelectric effects at microwave frequencies in a piezoelectric/magnetostrictive multilayer composite [J].

Bichurin, MI ;

Kornev, IA ;

Petrov, VM ;

Tatarenko, AS ;

Kiliba, YV ;

Srinivasan, G .

PHYSICAL REVIEW B, 2001, 64 (09)

[2]

ERDOGAN F, 1978, MECH TODAY, V4, P64

[3] Effects of electric field on crack growth for a penny-shaped dielectric crack in a piezoelectric layer [J].

Li, XF ;

Lee, KY .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2004, 52 (09) :2079-2100

[4] Closed-form solution for an orthotropic elastic strip with a crack perpendicular to the edges under arbitrary anti-plane shear [J].

Li, Xian-Fang ;

Lee, Kang Yong .

ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK, 2009, 89 (05) :370-382

[5] Fracture analysis of a weak-discontinuous interface in a symmetrical functionally gradient composite strip loaded by anti-plane impact [J].

Li, Yong-Dong ;

Lee, Kang Yong .

ARCHIVE OF APPLIED MECHANICS, 2008, 78 (11) :855-866

[6] Fracture analysis and improved design for a symmetrically bonded smart structure with linearly non-homogeneous magnetoelectroelastic properties [J].

Li, Yong-Dong ;

Lee, Kang Yong .

ENGINEERING FRACTURE MECHANICS, 2008, 75 (10) :3161-3172

[7] Fracture analysis on the arc-shaped interface in a layered cylindrical piezoelectric sensor polarized along its axis [J].

Li, Yong-Dong ;

Lee, Kang Yong .

ENGINEERING FRACTURE MECHANICS, 2009, 76 (13) :2065-2073

[8] Dynamic responses of a crack in a layered graded magnetoelectroelastic sensor subjected to harmonic waves [J].

Li, Yong-Dong ;

Lee, Kang Yong .

ACTA MECHANICA, 2009, 204 (3-4) :217-234

[9] Crack tip shielding and anti-shielding effects of the imperfect interface in a layered piezoelectric sensor [J].

Li, Yong-Dong ;

Lee, Kang Yong .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2009, 46 (7-8) :1736-1742

[10]

Muskhelishvili NI., 1953, Singular Integral Equations

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