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Detection of second harmonic components of Lamb waves passed through fatigue tested magnesium plate

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4 Author(s)
Makoto Fukuda ; Graduate School of Engineering and Resource Science, Akita University, 1-1 Tegata Gakuen-machi, 010-8502, Japan ; Kazuhiko Imano ; Hideki Yamagishi ; Katsuhiro Sasaki

Lamb waves are transmitted into pure magnesium plate which is carried out fatigue test and the second harmonic components generated from the plates are detected. Second harmonic components had increased as the number of fatigue test cycles producing the stress faults was increased. At 100 thousand and 200 thousand cycles, second harmonic components had increased by approximately 3 dB and 6 dB respectively compared with an unstressed plate.

Published in:

2011 IEEE International Ultrasonics Symposium

Date of Conference:

18-21 Oct. 2011