Published: Jan 1985
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This paper presents a closed-form expression for the weight function for a strip with a single edge crack. The expression is valid for relative crack lengths from zero to unity. It is based on the assumption that the shape of an opened edge crack can be approximated by a conic section. The results agree well with published values for weight functions, stress intensity factors, and crack mouth opening displacements.
elastic theory, fracture mechanics, edge cracks, stress intensity factor, crack opening displacement, weight function
Research Engineer, NASA Lewis Research Center, Cleveland, OH