Effects of Material Heterogeneity on Surface Fatigue for Rough Lubricated Rolling-Sliding Contacts

G.E. Morales-Espejel, Hugo Boffy, Cornelis H. Venner

    Research output: Contribution to journalArticleAcademicpeer-review

    3 Citations (Scopus)

    Abstract

    In view of increasingly severe operating conditions and the use of composite (strongly) heterogeneous materials, detailed modelling and optimisation methods are needed to predict the effects of subsurface material topology, either by design or resulting from inclusions and material anisotropy, on rolling-sliding contact fatigue life. In this paper, a method is proposed showing that such predictions can at present be obtained for realistic configurations on small-scale computers by integrating efficient numerical solution of the 3D displacement and stress field in the (heterogeneous) material with fast rough surface-lubricated contact models.

    Contact pressures, subsurface stresses and surface fatigue effects are shown for cases of bonded individual or multiple (clusters) of statistically distributed inhomogeneities close to the surface in realistic actual rolling–sliding rough contact geometries. The model contributes to the development of optimised failure criteria for composite/heterogeneous materials close to the surface.
    Original languageEnglish
    Pages (from-to)274-290
    JournalProceedings of the Institution of Mechanical Engineers. Part J: Journal of engineering tribology
    Volume231
    Issue number2
    DOIs
    Publication statusPublished - 2017

    Keywords

    • METIS-321800
    • IR-105081

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