Finite Element Simulation of Nonlinear Acoustic Behavior at Minute Cracks Using Singular Element.

DOI Web Site Web Site Web Site 被引用文献12件 参考文献20件
  • Okada Jyun-ichi
    Department of Mechanical Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
  • Ito Toshihiro
    Department of Mechanical Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
  • Kawashima Koichiro
    Department of Mechanical Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
  • Nishimura Naoya
    Department of Mechanical Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan

この論文をさがす

抄録

A finite element method (FEM) simulation of wave propagation is performed for a model plate which includes minute cracks nucleated by spallation. The minute cracks are modeled by singular elements which express nonlinear stress-strain at the crack surfaces. The transmitted wave through these cracks is simulated and the 2nd harmonic amplitude is processed by fast fourier transform (FFT). The ratio of the 2nd harmonic component to the fundamental one increases with an increase in the incident wave of amplitude for the incident wave of amplitude 5-20 nm. The simulated results qualitatively confirm the measured nonlinear acoustic response on spalled samples.

収録刊行物

被引用文献 (12)*注記

もっと見る

参考文献 (20)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ