Abstract
A general Betti's reciprocal work theorem with interface cracks of a bimaterial is established in this paper, and a path independent contour integral method for the stress intensity factor (SIF) of the interface crack was obtained. When the stress and displacement fields in a specimen are calculated by the finite element method, the SIF K I and K II of interface cracks can be obtained immediately by a contour integral. Some solutions of interesting examples, such as two collinear interface cracks, are also given.
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Yang, X.X., Kuang, Z.B. Contour integral method for stress intensity factors of interface crack. Int J Fract 78, 299–313 (1996). https://doi.org/10.1007/BF00032479
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DOI: https://doi.org/10.1007/BF00032479