This report presents an ultrasonic method for defect detection in rails that substantially differs from conventional ultrasonic rail inspection. The main difference is in the use of ultrasonic guided waves traveling along the rail running direction. These waves have the potential for improved reliability in detecting transverse cracks and for improved inspection speed when compared to conventional rail inspections. Extensive experimental and numerical tests have been conducted to demonstrate the capabilities of guided waves for the detection of both 'small' (less than or equal to 15% H.A.) and 'large' (greater than or equal to 15% H.A.) transverse cracks in the rail head. Advanced signal processing based on wavelet transforms and automatic pattern recognition has been implemented in the testing. Finally, impact hammers, pulsed lasers and air-coupled sensors have been investigated as practical ways to perform the testing in the field.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    On-Line High-Speed Rail Defect Detection


    Contributors:
    F. L. di Scalea (author) / I. Bartoli (author) / P. Rizzo (author) / J. McNamara (author)

    Publication date :

    2004


    Size :

    106 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Rail restoration lifetime on high speed line

    Bredif, P. / Plu, J. / Royer, C. et al. | Tema Archive | 2010


    Building the Dutch High Speed Rail Line

    Bouter, Leendert | IuD Bahn | 2001



    Defect detection performance of a high-speed rail inspection system from passive acoustic identification

    Datta, Diptojit / Liang, Albert / Cui, Ranting et al. | British Library Conference Proceedings | 2020


    High-speed rail overhead line system deicing device

    ZHANG PENGSHEN / GUO WEI | European Patent Office | 2025

    Free access