STP743: Benefits of Overload for Fatigue Cracking at a Notch

    Underwood, JH
    Materials engineers, U.S. Army Armament Research and Development Command, Large Caliber Weapon Systems Laboratory, Benet Weapons Laboratory, Watervliet, N.Y.

    Kapp, JA
    Materials engineers, U.S. Army Armament Research and Development Command, Large Caliber Weapon Systems Laboratory, Benet Weapons Laboratory, Watervliet, N.Y.

    Pages: 15    Published: Jan 1981


    Abstract

    Tests are described which measure the effect of compression overload on fatigue crack initiation and growth from a 0.1-mm-radius notch in alloy steel KIc specimens.

    Other tests are described which measure the effect of tension overload on fatigue crack initiation and growth from a 3.4-mm-root-radius notch in similar specimens.

    The effect of overload on the number of cycles required for crack growth is described for both types of tests in relation to a residual stress model.

    Keywords:

    overload, fatigue cracking, residual stress, notch, fracture mechanics


    Paper ID: STP28790S

    Committee/Subcommittee: E08.06

    DOI: 10.1520/STP28790S


    CrossRef ASTM International is a member of CrossRef.