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    A Multiaxial Fatigue Analysis of Fretting Contact Taking Into Account the Size Effect

    Published: 01 January 2000

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    Fretting damage that consists of cracking or wear generated by debris formation is induced by very small alternated displacements between contacting surfaces. This paper focuses on the quantification of the fretting crack nucleation. Fretting experimental results obtained with a well defined quenched aeronautical steel are analyzed by means of a multiaxial fatigue approach. The plane/sphere configuration was studied under partial slip situations. Validated for classical fatigue conditions, the Dang Van's fatigue prediction is compared to fretting cracking mechanisms. The correlation is achieved according to some conditions : - The friction coefficient operating in the annular partial slip contact has to be identified.

    It permits more accurate estimation of the stress loading path. - The loading states which are computed to determine the crack nucleation risk must be averaged on an elementary volume representative of the microstructure of the steel. It allows a convenient size effect consideration regarding the very small material volume stressed below the contact.


    fretting, crack nucleation, high-cycle fatigue, size effect, fretting map

    Author Information:

    Fouvry, S
    UMR CNRS 5513, Ecole Centrale de Lyon, Ecully,

    Kapsa, P
    UMR CNRS 5513, Ecole Centrale de Lyon, Ecully,

    Vincent, L
    UMR CNRS 5621, Ecole Centrale de Lyon, Ecully,

    Committee/Subcommittee: E08.06

    DOI: 10.1520/STP14728S