Simulation of Fatigue Crack Propagation in Railway Axles

    Volume 2, Issue 5 (May 2005)

    ISSN: 1546-962X

    CODEN: JAIOAD

    Published Online: 2 May 2005

    Page Count: 14


    Beretta, S
    Professor, and Researcher, Politecnico di Milano, Dipartimento di Meccanica, Milano,

    Carboni, M
    Professor, and Researcher, Politecnico di Milano, Dipartimento di Meccanica, Milano,

    (Received 1 March 2004; accepted 15 June 2004)

    Abstract

    The need for optimizing inspection intervals of wheelsets has led to increasing attention to those of railway axles. This paper addresses this issue by comparing predictions obtained by an EPFM model and two widely used fatigue crack growth softwares (namely AFGROW and NASGRO) with a set of propagation data derived from small and full-scale specimens made of 30NiCrMoV12, a high strength steel used for railway axles. Comparisons, made under constant amplitude and block loading, support the application of the considered fatigue crack growth algorithms to the estimation of inspection intervals.


    Paper ID: JAI12040

    DOI: 10.1520/JAI12040

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    Author
    Title Simulation of Fatigue Crack Propagation in Railway Axles
    Symposium Fatigue and Fracture Mechanics: 34th Volume, 2003-11-21
    Committee E08