In-situ thermal stress determination in structures is a challenging experimental mechanics task, especially if it requires a nondestructive approach. Thermal stress measurement and management of continuous welded rail (CWR) have become more important for railroad maintenance. Local resonances formed by zero-group velocity (ZGV) and cutoff frequency points usually demonstrate sharp resonance peaks in frequency spectra, which can be utilized for nondestructive evaluation (NDE) and Structural Health Monitoring (SHM). This paper examines the potential of the local resonances to provide an estimation of axial stress in rail structures. The local resonances are generated by bonding a piezoelectric element on the rail samples. A 610-mm rail sample was tested, and different axial stress levels were applied by an MTS tensile-compression machine and by measuring the local resonance signature in selected frequency bands to study sensitivity to axial stress of local resonances. The results show that appreciable sensitivities of the local resonances are found under varying stress levels and can be further utilized for in-situ thermal stress determination for rails.


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    Titel :

    Local resonances for rail neutral temperature estimation


    Beteiligte:
    Shull, Peter J. (Herausgeber:in) / Gyekenyesi, Andrew L. (Herausgeber:in) / Wu, H. Felix (Herausgeber:in) / Yu, Tzuyang (Herausgeber:in) / Wu, Yuning (Autor:in) / Zhang, Keping (Autor:in) / Zhu, Xuan (Autor:in) / Popovics, John (Autor:in)

    Kongress:

    Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVII ; 2023 ; Long Beach, California, United States


    Erschienen in:

    Proc. SPIE ; 12487


    Erscheinungsdatum :

    2023-04-18





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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    Rail Neutral Temperature Measurement

    Mau, F. / International Heavy Haul Association | British Library Conference Proceedings | 1997


    Rail neutral temperature estimation using impulse vibration and machine learning

    Wu, Yuning / Zhu, Xuan / Huang, Chi-luen et al. | British Library Conference Proceedings | 2021


    Rail neutral temperature maintenance guideline

    Read, David / Kish, Andrew | IuD Bahn | 2009


    Potable rail neutral temperature detection apparatus

    CHO SEONG JIN / KIM HONG JIP / PARK SANG JUN et al. | Europäisches Patentamt | 2019

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