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http://dx.doi.org/10.5050/KSNVN.2005.15.1.081

Damage Detection in a Plate Using an Orientation-adjustable Magnetostrictive Transducer  

Cho, Seung-Hyun (서울대학교 대학원 기계항공공학부)
Lee, Ju-Seung (서울대학교 대학원 기계항공공학부)
Sun, Kyung-Ho (서울대학교 대학원 기계항공공학부)
Kim, Yoon-Young (서울대학교 기계항공공학부)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.15, no.1, 2005 , pp. 81-86 More about this Journal
Abstract
In this work, we propose a new ultrasonic damage inspection method in plate structures. The proposed method employs an OPMT(orientation-adjustable patch-type magnetostrictive transducer) in order to make the ultrasonic waves directed to a specific target point. For experiments, virtual grid points were set up at every 50 mm in an aluminum plate and two OPMTs were used for inspection. If there exists a crack in a plate, the reflected Lamb wave from the crack is measured in addition to the direct waves from the transmitting transducer to the receiving transducer.
Keywords
Damage Detection; Magnetostrictive Transducer; Plate; Guided Wave; Orientation-adjustable;
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