Mixed-mode fracture mechanics parameters of elliptical interface cracks in anisotropic bimaterials

Yibin Xue, Jianmin Qu

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

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 transferal 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.

Original languageEnglish
Pages (from-to)143-159
Number of pages17
JournalASTM Special Technical Publication
Issue number1359
DOIs
StatePublished - 1999
EventProceedings of the 1998 Symposium on Mixed-Mode Crack Behavior - Atlanta, GA, USA
Duration: 6 May 19987 May 1998

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