STP995V2: Nonlinear Work-Hardening Crack-Tip Fields by Dislocation Modeling

    Ellyin, F
    Professor, University of Alberta, Edmonton, Alberta

    Fakinlede, OA
    Assistant professor, University of Ilorin, Ilorin, Kwara State

    Pages: 13    Published: Jan 1988


    Abstract

    The dislocation model is extended to include nonlinear hardening of the cracktip fields. The resulting model is applied to the loaded and unloaded crack. Several factors affecting the cyclic J-integral are discussed, including mean stress, Baushinger effects, and the applied far-field strain energy density.

    Keywords:

    dislocation, cyclic , J, -integral, nonlinear hardening, unloading, Bauschinger effects, mean stress, nonlinear fracture mechanics, fracture mechanics


    Paper ID: STP27705S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP27705S


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