Two dimensional model for subharmonic generation at closed cracks with damped double nodes

Kazushi Yamanaka, Yohei Shintaku, Yoshikazu Ohara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We describe the first two dimensional (2D) model to reproduce subharmonic generation at closed cracks using damped double nodes (DDN). Numerical simulation using finite difference time domain (FDTD) method was performed using DDN. We verify transparency of low amplitude wave to closed cracks and typical stress divergence at crack tip produced by large amplitude wave.

Original languageEnglish
Title of host publicationNonlinear Acoustics
Subtitle of host publicationState-of-the-Art and Perspectives, ISNA 2012 - 19th International Symposium on Nonlinear Acoustics
Pages179-182
Number of pages4
Edition1
DOIs
Publication statusPublished - 2012 May 1

Publication series

NameAIP Conference Proceedings
Number1
Volume1474
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Keywords

  • Damping
  • FDTD
  • Imaging
  • Nodes
  • Phased array
  • Subharmonic waves

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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