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TECHNICAL PAPERS

Closed-Form Solution for an Antiplane Interface Crack between Two Dissimilar Magnetoelectroelastic Layers

[+] Author and Article Information
Bao-Lin Wang

Centre for Advanced Materials Technology (CAMT), School of Aerospace, Mechanical and Mechatronic Engineering, Mechanical Engineering Building J07, The University of Sydney, Sydney, NSW 2006, Australiawangbl2001@hotmail.com

Yiu-Wing Mai

Centre for Advanced Materials Technology (CAMT), School of Aerospace, Mechanical and Mechatronic Engineering, Mechanical Engineering Building J07, The University of Sydney, Sydney, NSW 2006, Australiamai@aeromech.usyd.edu.au

J. Appl. Mech 73(2), 281-290 (Jul 17, 2005) (10 pages) doi:10.1115/1.2083827 History: Received March 21, 2005; Revised July 17, 2005

In recent years, ferroelectromagnetic laminated composites have aroused worldwide research interest. In this paper, we developed a closed-form solution for antiplane mechanical and in-plane electric and magnetic fields for a crack between two dissimilar magnetoelectroelastic layers of finite thickness. Explicit expressions for stresses, electric and magnetic fields, together with their intensity factors are obtained for the two extreme cases of an impermeable and a permeable crack. Solutions for some special cases, such as a homogeneous magnetoelectroelastic layer, two magnetoelectroelastic layers with opposite poling directions, and a piezoelectric layer bonded to a piezomagnetic layer are also obtained. Explicit relations between the field intensity factors and the energy release rates for the interface crack are provided.

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Copyright © 2006 by American Society of Mechanical Engineers
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Figures

Grahic Jump Location
Figure 1

An interface crack in a magnetoelectroelastic layered medium

Grahic Jump Location
Figure 2

A center crack between a piezoelectric layer and a piezomagnetic layer

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