STP687

    Prediction of Constant Amplitude Fatigue Crack Propagation in Surface Flaws

    Published: Jan 1979


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    Abstract

    A technique used to predict constant amplitude crack growth in a surface flaw is presented. Various aspects of this technique that are discussed include: constant amplitude crack growth data, crack growth models, crack growth accumulation/ integration routine, surface flaw stress intensity factors, surface flaw transition to a through crack and the definition of failure/fracture of a specimen. The author's predictions and the results of a round-robin effort are discussed.

    Keywords:

    crack propagation, surface flaw, surface flaw transition, crack growth integration, fatigue (materials)


    Author Information:

    Johnson, WS
    Duke University, Durham, N. C.


    Paper ID: STP35037S

    Committee/Subcommittee: E08.06

    DOI: 10.1520/STP35037S


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