Abstract
The in-plane extension of a finite bi-material plate with an edge crack along the interface is considered. A set of stress functions is assumed such that they satisfy not only the equilibrium equations in the domain, but also the stress and displacement conditions on the crack surfaces and across the interface. Meanwhile, they can also represent the stress singularity at the crack tip. Therefore, only the boundary conditions need to be considered, and they can be satisfied approximately by the boundary collocation method. Numerical examples of stress intensity factor calculation for biaxial and uniaxial loading conditions are given, and it is demonstrated that the proposed method gives satisfactory results.
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