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    Acoustic Emission Monitoring of the Woodrow Wilson Bridge

    New search for: D. W. Vannoy
    New search for: M. Azmi
    New search for: J. Liu

    A major problem in applying acoustic emission technology to detect cracks in the highway bridges is discriminating between crack waves and background traffic noise. An acoustic emission monitoring system to detect cracks in highway bridges has been developed at the University of Maryland, using acoustic emission technology, and it has been successful in detecting cracks in the Woodrow Wilson Bridge. Acoustic emission signals from traffic noise and the growth of fatigue cracks were characterized both in the time and the frequency domain. Differences in frequency distribution and wave characteristics of the traffic noise and cracks were determined. Signal attenuation for different cable lengths and effective transducer spacing were examined and the suitable cable lengths were determined.

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    Acoustic Emission Monitoring of the Woodrow Wilson Bridge

    New search for: D. W. Vannoy
    New search for: M. Azmi
    New search for: J. Liu

    A major problem in applying acoustic emission technology to detect cracks in the highway bridges is discriminating between crack waves and background traffic noise. An acoustic emission monitoring system to detect cracks in highway bridges has been developed at the University of Maryland, using acoustic emission technology, and it has been successful in detecting cracks in the Woodrow Wilson Bridge. Acoustic emission signals from traffic noise and the growth of fatigue cracks were characterized both in the time and the frequency domain. Differences in frequency distribution and wave characteristics of the traffic noise and cracks were determined. Signal attenuation for different cable lengths and effective transducer spacing were examined and the suitable cable lengths were determined.

    Access

    Access via TIB
    Check availability in my library

    Acoustic Emission Monitoring of the Woodrow Wilson Bridge

    New search for: D. W. Vannoy
    New search for: M. Azmi
    New search for: J. Liu

    A major problem in applying acoustic emission technology to detect cracks in the highway bridges is discriminating between crack waves and background traffic noise. An acoustic emission monitoring system to detect cracks in highway bridges has been developed at the University of Maryland, using acoustic emission technology, and it has been successful in detecting cracks in the Woodrow Wilson Bridge. Acoustic emission signals from traffic noise and the growth of fatigue cracks were characterized both in the time and the frequency domain. Differences in frequency distribution and wave characteristics of the traffic noise and cracks were determined. Signal attenuation for different cable lengths and effective transducer spacing were examined and the suitable cable lengths were determined.

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    Title:

    Acoustic Emission Monitoring of the Woodrow Wilson Bridge

    Contributors:

    D. W. Vannoy (author) / M. Azmi (author) / J. Liu (author)

    Publication date:

    1987

    Size:

    115 pages

    Type of media:

    Report

    Type of material:

    No indication

    Language:

    English

    Keywords:

    Highway Engineering , Nondestructive Testing , Acoustic detection , Bridges(Structures) , Cracking(Fracturing) , Fatigue(Materials) , Fatigue tests , Sonar countermeasures , Noise(Sound) , Nondestructive tests , Measuring instruments , Graphs(Charts)

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