Volume 37, Issue 3 (May 2009)

    Development and Preliminary Testing of a Crack Detection Sensor for Crack Velocity Measurement of an Edge-Notched Disk

    (Received 10 August 2008; accepted 10 February 2009)

    Published Online: 2009

    CODEN: JTEOAD

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    Abstract

    In the present study, a crack velocity measuring system is developed based on the electrical method. The proposed crack velocity measuring system and an available crack gage system were attached on opposite sides of an edge-notched granite disk specimen to measure the velocity of crack propagation on each side of the surface crack. Three sensing materials were assessed for their applicability in crack detection. It was found that the sensing materials have a strong effect on the measurement of the crack velocity. Several observations on crack propagation and some aspects of the proposed measuring technique are discussed in this study.


    Author Information:

    Hsieh, Chi-Tai
    Ph.D. Candidate, Department of Resources Engineering, National Cheng Kung University, Tainan,

    Wang, Chein-Lee
    Associate Professor, Department of Resources Engineering, National Cheng Kung University, Tainan,

    Wang, Shih-Hui
    Ph.D. Candidate, Department of Resources Engineering, National Cheng Kung University, Tainan,


    Stock #: JTE102071

    ISSN: 0090-3973

    DOI: 10.1520/JTE102071

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    Title Development and Preliminary Testing of a Crack Detection Sensor for Crack Velocity Measurement of an Edge-Notched Disk
    Symposium , 0000-00-00
    Committee E08