High-speed Alternating Field Current Measurement (ACFM) tests were carried out using a rotary test piece that contained spark eroded notches. The ACFM sensor detected the induced notches at 121. 5km/h while the recorded signal intensity remained largely unaffected by the increases in speed under constant lift-off. To simulate actual rail inspection conditions at high speed, further tests were carried out using a spinning rail rig and a set of rails that contained spark eroded notches of various shapes and sizes up to a speed of 48 km/h. The ACFM sensor successfully detected the artificially induced notches however the signal was affected by severe lift-off variations that occurred during testing.


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    Title :

    High-speed inspection of rolling contact fatigue in rails using ACFM sensors


    Additional title:

    Hochgeschwindigkeitsprüfung von Wälzermüdung in Schienen mittels Wechselfeld-Strommess-Sensoren


    Contributors:
    Papaelias, M.P. (author) / Roberts, C. (author) / Davis, C.L. (author) / Blakeley, B. (author) / Lugg, M. (author)


    Publication date :

    2008


    Size :

    9 Seiten, 8 Bilder, 9 Quellen



    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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    Papaelias, M.P. / Lugg, M.C. / Roberts, C. et al. | Tema Archive | 2009


    Further developments in high-speed detection of rail rolling contact fatigue using ACFM techniques

    Papaelias, M.P. / Roberts, C. / Davis, C.L. et al. | Tema Archive | 2010


    Detection and quantification of rail contact fatigue cracks in rails using ACFM technology

    Papaelias, M.P. / Roberts, C. / Davis, C.L. et al. | Tema Archive | 2007


    High-speed detection of rolling contact fatigue in railway rails

    Nicholas, M.J. / Hope, A.D. | Tema Archive | 2006


    Use of the ACFM Technique for the Inspection of Rails and Railway Vehicles

    Topp, D. / Smith, M. / British Institute of Non-destructive Testing | British Library Conference Proceedings | 2004