Tests in a full-scale roller rig, a full-scale linear test rig, and a twin-disc machine are numerically evaluated and compared in terms of rolling contact fatigue loading. From previously evaluated contact patch sizes, a Wöhler curve relationship is established and matched towards experimentally established fatigue lives. In addition, non-linear finite-element simulations are carried out. Key data needed for the numerical evaluations, as well as difficulties in translating experimental data to numerical models are highlighted. A key parameter here is the interfacial wheel-rail friction. Additional simulations were carried out to establish the latter. However, the conformal contact in the linear test rig makes such simulations very uncertain.


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    Title :

    Rolling contact fatigue prediction for rails and comparisons with test rig results


    Contributors:
    Kabo, E. (author) / Ekberg, A. (author) / Torstensson, P.T. (author) / Vernersson, T. (author)


    Publication date :

    2010


    Size :

    15 Seiten, 16 Bilder, 3 Tabellen, 17 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Rolling contact fatigue prediction for rails and comparisons with test rig results

    Kabo, E / Ekberg, A / Torstensson, P T et al. | SAGE Publications | 2010


    Rolling contact fatigue prediction for rails and comparisons with test rig results

    Kabo, E. / Ekberg, A. / Torstensson, P.T. et al. | British Library Online Contents | 2010




    Rolling Contact Fatigue of Rails: Characteristics, Causes and Treatments

    Grassie, S. L. / Kalousek, J. / International Heavy Haul Association | British Library Conference Proceedings | 1997