Abstract
A boundary integral equation (BIE) technique has been applied for modeling compact-tension specimens of a Ni-based superalloy single crystal with an inclined crack. Based on a special Green's function, the BIE technique allows explicit calculations of the K I and K II stress intensity factors for the inclined crack from the boundary condition data. The stress intensity factor calculations have been made as a function of crack length, crack angle, and elastic anisotropy. These results were utilized to analyze the overload fracture behavior of MarM200 single crystals.
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