Scattering of surface waves by a sub-surface crack

J. D. Achenbach*, R. J. Brind

*Corresponding author for this work

Research output: Contribution to journalArticle

67 Scopus citations

Abstract

The scattering of Rayleigh waves by a two-dimensional sub-surface crack, which is perpendicular to the free surface of an elastic half-space, is investigated. The boundary-value problem for the scattered field is stated, and reduced to an uncoupled system of integral equations which are solved numerically. At large distances from the crack the scattered field is shown to consist of outgoing Rayleigh waves and cylindrical body waves. Graphs of the variation of the amplitude and phase of the forward and backward scattered Rayleigh waves with the frequency and the geometrical parameters of the crack are presented. The stress intensity factors at both crack tips have also been obtained.

Original languageEnglish (US)
Pages (from-to)43-56
Number of pages14
JournalJournal of Sound and Vibration
Volume76
Issue number1
DOIs
StatePublished - May 8 1981

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering

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