STP687

    Aspect Ratio Variability in Part-Through Crack Life Analysis

    Published: Jan 1979


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    Abstract

    A survey of various analytical solutions currently used in part-through crack life prediction is presented. Solutions are included which account for shape change effects as well as constant shape solutions. Comparisons of these solutions with constant amplitude experimental data are examined. Results are presented for three different materials: 2219-T851 aluminum, 6A1-4V (β annealed) titanium and 9Ni-4Co-0.20C steel.

    Keywords:

    part-through cracks, life analysis, stress-intensity factors, crack growth analysis, crack propagation, fatigue (materials)


    Author Information:

    Engle, RM
    Aerospace engineer, Air Force Flight Dynamics Laboratory, Wright-Patterson AFB, Ohio


    Paper ID: STP35032S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP35032S


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