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A General Model for Rayleigh Wave — Surface Feature Scattering Problems

  • R. J. Blake
  • L. J. Bond
Chapter
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series

Abstract

In non-destructive testing, it has been suggested that wavelength or frequency dependent Rayleigh wave scattering coefficients could provide a means of characterising surface defects. Only a few Rayleigh wave scattering problems have analytic solutions and most workers have resorted to numerical techniques [1]. In this paper we present details of a new model that can deal with general surface defect geometries. The scheme is used to model Rayleigh wave scattering from curved corners, steps and slots. The implications of the results for a Rayleigh wave based defect characterisation method are discussed briefly.

Keywords

Reflection Coefficient Rayleigh Wave Curve Corner Irregular Grid High Frequency Regime 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    R.J. Blake and L.J. Bond, Ultrasonics, in press (1989).Google Scholar
  2. 2.
    T. Belytschko and R. Mullen, Int. J. Num. Meth. Eng. 12, 1575 (1978).CrossRefMATHGoogle Scholar
  3. 3.
    R.J. Blake, Ph.D. dissertation, Dept. Electronic and Electrical Engineering, University College London, 1988.Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • R. J. Blake
    • 1
  • L. J. Bond
    • 2
  1. 1.SERC Daresbury LaboratoryDaresbury, WarringtonUK
  2. 2.Department of Mechanical EngineeringUniversity College LondonLondonUK

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