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Modelling of corner echo ultrasonic inspection with bulk and creeping waves

  • Guillaume HuetEmail author
  • Michel Darmon
  • Alain Lhéemery
  • Steve Mahaut
Part of the Springer Proceedings in Physics book series (SPPHY, volume 128)

Abstract

The creeping wave is a well-known phenomenon in seismology and in non-destructive evaluation. This wave which is generated at the interface between two media radiates during its propagation as a head wave. The amplitude of creeping wave is usually small compared to the compressional and shear waves. However, in some configurations, especially near critical angle (at backwall reflection, for instance), its contribution to the echo response may be significant. Such a case is discussed in this communication, both theoretically and experimentally. Computation of echo response of this wave, based on ray theory has been developed. The resulting model combined with bulk wave modelling is compared to experimental measurements.

Keywords

Shear Wave Rayleigh Wave Grey Line Critical Angle Slope Bottom 
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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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Guillaume Huet
    • 1
    Email author
  • Michel Darmon
    • 1
  • Alain Lhéemery
    • 1
  • Steve Mahaut
    • 1
  1. 1.CEA, LIST, Laboratoire de Simulation et de ModélisationGif-sur-YvetteFrance

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