STP714: Effect of Spectrum Editing on Fatigue Crack Initiation and Propagation in a Notched Member

    Socie, DF
    Assistant professor and research assistant, Mechanical Engineering, University of Illinois, Urbana, Ill.

    Artwohl, PJ
    Assistant professor and research assistant, Mechanical Engineering, University of Illinois, Urbana, Ill.

    Pages: 21    Published: Jan 1980


    Abstract

    A method for eliminating small, nondamaging cycles from irregular loading histories is described. Analytic estimates of crack initiation, crack propagation, and total fatigue lives are compared to experimental data for full and edited load histories from the Society of Automotive Engineers Cumulative Fatigue Damage Test Program. Load histories edited to have equal crack initiation lives do not have equal crack propagation lives.

    Keywords:

    fatigue (materials), crack initiation, crack propagation, life prediction, spectrum editing


    Paper ID: STP27480S

    Committee/Subcommittee: E08.05

    DOI: 10.1520/STP27480S


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