Characterization of Surface Defects by Rayleigh-Waves

  • A. Klein
  • H. J. Salzburger
Conference paper


In this paper an approaching procedure will be demonstrated to determine the dimensions of cracklike surface defects by evaluating the amplitude of the reflected Rayleigh-wave signal as function of frequency. In order to treat the problem mathematically and experimentally the defect is modelled by a rectangular notch. The mathematical treatment as well as the experimental checking and last not least the determination of the crack parameters length, depth and width (see fig. 1) are presented.


Crack Length Radiation Pattern Acoustic Surface Wave Sound Field Notch Depth 
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  1. 1.
    H.S. Tuan and R.G.M. Li Rayleigh-wave reflection from groove and step discontinuities J.A.S.A., Vol. 55, Nr. 6, June 1974, 1212–1216CrossRefGoogle Scholar
  2. 2.
    B.R. Tittmann, F. Cohen-Tenoudji, M. de Billy, A. Jungmann and G. Quentin A simple approach to estimate the size of small surface cracks with the use of acoustic surface waves Appl. Phys. Lett. 33 (1), 1 July 1973, p. 6–8CrossRefGoogle Scholar
  3. 3.
    R. Sauer, T. Szabo Mathematische Hilfsmittel des Ingenieurs IIIGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1983

Authors and Affiliations

  • A. Klein
    • 1
  • H. J. Salzburger
    • 1
  1. 1.Fraunhofer-Institut für zerstörungsfreie PrüfverfahrenSaarbrückenGermany

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