TY - JOUR
T1 - Mixed-mode fracture mechanics parameters of elliptical interface cracks in anisotropic bimaterials
AU - Xue, Yibin
AU - Qu, Jianmin
PY - 1999
Y1 - 1999
N2 - 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.
AB - 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.
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U2 - 10.1520/stp14248s
DO - 10.1520/stp14248s
M3 - Conference article
AN - SCOPUS:0032672520
SN - 1040-3094
SP - 143
EP - 159
JO - ASTM Special Technical Publication
JF - ASTM Special Technical Publication
IS - 1359
T2 - Proceedings of the 1998 Symposium on Mixed-Mode Crack Behavior
Y2 - 6 May 1998 through 7 May 1998
ER -