Analysis of subsurface cracks in acoustic microscopy

Kazushi Yamanaka

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Acoustic micrographs of samples containing subsurface cracks have been analyzed with a plate model which faces the coupling liquid above and a vacuum below. Minima have been found in the intensity of the reflected beam as a function of the thickness D of the plate when the normalized parameter FD (F is the frequency) is among multiples of the half velocities of either longitudinal or shear waves in the sample. A model is proposed to explain these minima as destructive interference due to the higher order modes of leaky Lamb waves with very large phase velocities.

本文言語English
ページ(範囲)191-193
ページ数3
ジャーナルJapanese journal of applied physics
25
S1
DOI
出版ステータスPublished - 1986 1

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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