Multiaxial Stress-Strain Approximations for Notch Fatigue Behaviors

    Volume 5, Issue 2 (March 1977)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 8


    Walker, EK
    Research and development engineerMember of ASTM, Structures Div., Lockheed-California Co., Burbank, Calif.

    Abstract

    The use of the fatigue notch factor Kf in Neuber's rule is shown to be identical in the elastic range to the assumption of the Hookian stress concentration factor Kt, a multiaxial stress state, and a maximum principal strain criterion for fatigue life. The adequacy of assuming the fatigue notch factor Kf is demonstrated for mild notches. Arguments are presented in favor of assuming a multiaxial stress state at the notch for highly constrained notches.


    Paper ID: JTE10670J

    DOI: 10.1520/JTE10670J

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    Author
    Title Multiaxial Stress-Strain Approximations for Notch Fatigue Behaviors
    Symposium , 0000-00-00
    Committee E08