A ferritic-pearlitic nodular iron automobile suspension knuckle was fatigue tested in the laboratory using a constant amplitude load level that simulated a severe service condition. It was found that cracks always initiated from surface casting defects and that the fatigue life could be extended significantly by machining away the as-cast surface in the fatigue sensitive locations. Both local strain and fracture mechanics approaches were used successfully to predict the fatigue life of the component.


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    Title :

    Fatigue Evaluation of a Nodular Cast Iron Component


    Additional title:

    Sae Technical Papers


    Contributors:
    Dabell, B.J. (author) / DuQuesnay, D.L. (author) / Yu, M.T. (author) / Topper, T.H. (author)

    Conference:

    International Congress & Exposition ; 1992



    Publication date :

    1992-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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