SYMPOSIA PAPER Published: 01 January 1999
STP14248S

Mixed-Mode Fracture Mechanics Parameters of Elliptical Interface Cracks in Anisotropic Bimaterials

Source

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, except for circular (penny-shaped) cracks. In this paper, an elliptical 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. To illustrate the solution procedure, an elliptical delamination in a cross-ply composite is solved. Numerical results of the stress intensity factors and energy release rate along the crack front are obtained terms of the interfacial matrix M. It is found that the fields near the crack front are often in mixed mode, due to material anisotropy and the three dimensional nature of the crack front.

Author Information

Xue, Y
Georgia Institute of Technology, School of Mechanical Engineering, Atlanta, GA
Qu, J
Georgia Institute of Technology, School of Mechanical Engineering, Atlanta, GA
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: E08
Pages: 143–159
DOI: 10.1520/STP14248S
ISBN-EB: 978-0-8031-5406-3
ISBN-13: 978-0-8031-2602-2