STP1321

    Service Load Fatigue Testing of Railway Bogie Components

    Published: Jan 1997


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    Abstract

    A series of fatigue tests on railway bogie (undercarriage) components has been completed in Finland and Sweden. Tests were designed to evaluate the high cycle fatigue behavior of welded constructions. The loading was based on in-service field measured data. A standard test procedure for evaluating the fatigue integrity of bogies is based on an assumption of infinite life and in-phase interaction between four load actuators. The relationship between the standardized loads and the actual field service loadings is examined. Results showed that design and testing procedures should be based on a long but finite life concept that recognizes the large amount of fatigue damage that can be contributed by small cycles in a spectrum that contains only a small portion of large cycles that exceed the constant amplitude fatigue limit.

    Keywords:

    spectrum fatigue, high cycle fatigue, bogie, fatigue testing, load spectra, railway components, welded structures


    Author Information:

    Marquis, G
    Research Scientist, VTT Manufacturing Technology, VTT,

    Dahle, T
    Senior Research Engineer, ABB Corporate Research, Laboratory for Applied Mechanics, Västerås,

    Solin, J
    Research Scientist, VTT Manufacturing Technology, VTT,


    Paper ID: STP12317S

    Committee/Subcommittee: E08.04

    DOI: 10.1520/STP12317S


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