Estimation of elastic constants from surface acoustic wave velocity by inverse analysis using the downhill simplex method

Harumichi Sato, Hideo Nishino, Hideo Cho, Hisato Ogiso, Kazushi Yamanaka

研究成果: Article査読

7 被引用数 (Scopus)

抄録

The measurement of surface acoustic wave (SAW) velocity is used to estimate the surface properties because the velocity depends on the elastic properties near the surface. To estimate the elastic constants, we developed a new inverse method combining the Monte Carlo method and the downhill simplex method. The initial values are determined using many random numbers, instead of an arbitrarily chosen several sets of values, in order to reduce the risk of trapping by the local pseudo minima. We confirm that the estimated elastic constants agree well with the reported elastic constants of Si and the experimental SAW velocity is quite well reproduced. We estimate the elastic constants of quartz for application purposes.

本文言語English
ページ(範囲)3116-3119
ページ数4
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
37
5 B
DOI
出版ステータスPublished - 1998

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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