STP1367

    Applications of Fracture Mechanics in Fretting Fatigue Life Assessment

    Published: Jan 2000


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    Abstract

    Models based on fracture mechanics are developed in order to describe crack growth in fretting fatigue. Particular attention is given to a recently developed model, the ‘Crack Analogue’ in which certain aspects of equivalence are recognized between contact mechanics and fracture mechanics. Here, an analogy is invoked between the sharp edged contact region between two contacting surfaces and the geometry of the near-tip regions of a double edge-cracked plate. Based on this approach, a new life prediction methodology is developed for fretting fatigue.

    Keywords:

    fretting fatigue, crack growth, crack analogue, contact mechanics, fracture mechanics, fatigue threshold


    Author Information:

    Giannakopoulos, AE
    Massachusetts Institute of Technology, Cambridge, MA

    Lindley, TC
    Imperial College of Science, Technology and Medicine, London,

    Suresh, S
    Massachusetts Institute of Technology, Cambridge, MA


    Paper ID: STP14723S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP14723S


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