Detection of structural damages by jerk-dot sensors

Akira Sone*, Arata Masuda, Takashi Matsuura, Takahiko Yamamura, Makoto Yamada, Sizuo Yamamoto

*この研究の対応する著者

研究成果: Article査読

抄録

In this paper, a jerk-dot sensor, which measures the second derivative of the acceleration, is developed. Its capability of detect the local damage in structural members is investigated through lowcycle fatigue tests, which prove its significant sensitivity to the abnormal responses due to the development of macroscopic damages. Further fracture tests are carried out to obtain the correlation between the measured jerk-dot and the crack depth, which suggests that this sensor could provide an early alert before the crack grows up the fatal stage compared with AE sensor and accelerometer.

本文言語English
ページ(範囲)1318-1323
ページ数6
ジャーナルNippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
70
5
DOI
出版ステータスPublished - 2004 5月
外部発表はい

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 産業および生産工学

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