Surface Waves for Anisotropic Material Characterization-A Computer Aided Evaluation System

  • J. L. Rose
  • Y. Huang
  • A. Tverdokhlebov
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series


Along with a wide application of nondestructive evaluation methods by ultrasonic techniques, Rayleigh surface waves are being studied for their applications in material characterization. Because surface waves can offer some sensitive measurement features of wave propagation, it is suggested that surface waves be conveniently used as an experimental technique for the solution of the inverse problem of determining elastic constants and/or other characteristics in materials [1–3]. The most common direct problem is to obtain wave propagation features by theoretical analysis, experimental measurement, or numerical calculation. A desired problem in material evaluation however, is to solve an inverse problem to find material characteristics from a set of field measurement data. In surface wave problems, the closed form solutions may not even exist for some direct problems. Moreover, often material constants collectively influence the ultrasonic wave propagation in anisotropic medium, and we can not decouple them and evaluate them individually by each single ultrasonic measurement. Therefore, a numerical computational procedure is proposed.


Wave Propagation Surface Wave Elastic Constant Material Constant Anisotropic Medium 
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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • J. L. Rose
    • 1
  • Y. Huang
    • 1
  • A. Tverdokhlebov
    • 1
  1. 1.Department of the Mechanical Engineering and MechanicsDrexel UniversityPhiladelphiaUSA

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