Journal of The Japanese Society for Non-Destructive Inspection
Print ISSN : 0367-5866
Volume 67, Issue 12
Displaying 1-1 of 1 articles from this issue
  • Tomonori HONGU, Kiyoshi KOYAMA
    2018 Volume 67 Issue 12 Pages 619-626
    Published: December 01, 2018
    Released on J-STAGE: November 30, 2018
    JOURNAL FREE ACCESS

    CFRP is used extensively in aircraft and spacecraft structures, because of its excellent mechanical properties. Ultrasonic testing, which is used as a non-destructive testing (NDT) technique for CFRP, requires a contact medium. In contract, eddy current testing (ECT) does not require a contact medium, and when used for CFRP testing it has advantages over other techniques. This paper describes the use of the ECT method for the inspection and detection of impact damage in CFRP. Scanning experiments were carried out using an eddy current Θ probe, which was developed by the authors, at test frequency of 2 MHz. CFRP samples of 3.0 mm in thickness with artificial impact damage are used. As a result, it has been confirmed that the eddy current Θ probe can detect the impact damage, produced by the energy of 2.45 J, with high signal-to-noise ratio rather than conventional eddy current surface probes.

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