STP868

    Wide-Range Weight Functions for the Strip with a Single Edge Crack

    Published: Jan 1985


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    Abstract

    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.

    Keywords:

    elastic theory, fracture mechanics, edge cracks, stress intensity factor, crack opening displacement, weight function


    Author Information:

    Orange, TW
    Research Engineer, NASA Lewis Research Center, Cleveland, OH


    Paper ID: STP34247S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP34247S


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