Nonlinear dynamics caused by incidence of ultrasonic waves into a closed crack

Tamaki Ishikawa, Soshu Hirata, Toshihiko Sugiura

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

A nondestructive evaluation technique based on nonlinear acoustics has been recently expected as a potential method of detecting a closed crack such as a failure of joining and a fatigue crack caused by residual stress. This research investigates nonlinearity coming from collisions between two faces of a closed crack caused by incident ultrasonic waves. According to our theoretical analysis of nonlinear dynamics shown by a simple mass-spring model hitting against a sinusoidally excited base, qualitative changes in vibration of the mass occur and superharmonics or subharmonics appear, depending on parameters such as the input frequency or the initial compression between the mass and the base. Numerical analyses and experiments were also carried out, by using a model of two solid blocks in contact. Obtained results show tendency similar to that of the above theoretical result.

本文言語English
ホスト出版物のタイトルReview of Progress in Quantitative Nondestructive Evaluation
ホスト出版物のサブタイトルVolume 26
ページ1306-1311
ページ数6
DOI
出版ステータスPublished - 2007 5 14
イベントREVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION - Portland, OR, United States
継続期間: 2006 7 302006 8 4

出版物シリーズ

名前AIP Conference Proceedings
894
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

OtherREVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION
国/地域United States
CityPortland, OR
Period06/7/3006/8/4

ASJC Scopus subject areas

  • 生態、進化、行動および分類学
  • 生態学
  • 植物科学
  • 物理学および天文学(全般)
  • 自然保全および景観保全

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