STP1006

    Compilation of Procedures for Fatigue Crack Propagation Testing Under Complex Load Sequences

    Published: Jan 1989


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    Abstract

    A review is made of procedures, developed at the National Aeronautical Laboratory for fatigue crack propagation testing under flight spectrum loading. They include K-control and on-line spectrum editing that were found to have a significant impact on spectrum load testing. Techniques are described for unambiguous assessment of crack closure stress and for binary-coded marker loading.

    Keywords:

    fatigue crack, spectrum loading, K, -control, dK/da, net stress, on-line spectrum editing, binary-coded loads, fatigue (materials), testing


    Author Information:

    Sunder, R
    Scientist, National Aeronautical Laboratory, Bangalore,


    Paper ID: STP10357S

    Committee/Subcommittee: E08.05

    DOI: 10.1520/STP10357S


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