Three-Dimensional Interface Cracks in Anisotropic Bimaterials: The Non-Oscillatory Case

[+] Author and Article Information
Jianmin Qu, Yibin Xue

G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405

J. Appl. Mech 65(4), 1048-1055 (Dec 01, 1998) (8 pages) doi:10.1115/1.2791899 History: Received October 14, 1997; Revised June 18, 1998; Online October 25, 2007


Two-dimensional interface cracks in anisotropic bimaterials have been studied extensively in the literature. However, solutions to three-dimensional interface cracks in anisotropic bimaterials are not available. In this paper, a penny-shaped crack on the interface between two anisotropic elastic half-spaces is considered. A formal solution is obtained by using the Stroh method in two-dimensional elasticity in conjunction with the Fourier transform method. Fracture mechanics parameters such as the stress intensity factor, crack-opening displacement, and energy release rate are obtained in terms of the interfacial matrix M . To illustrate the solution procedure, a circular delaminations in a unidirectional and a cross-ply composite are considered. Numerical results for the stress intensity factors and energy release rate along the crack front are presented.

Copyright © 1998 by The American Society of Mechanical Engineers
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