Abstract
As a rule, the introduction of new concepts in non-destructive testing (NDT) and health monitoring requires a thorough understanding of the underlying physics. In the case of methods based on elastodynamics such as ultrasonic pulse-echo, impact-echo, or guided-wave techniques this demands a sound knowledge of the corresponding wave propagation phenomena, including anisotropy, dispersion, scattering and diffraction. Gaps in knowledge can even be an obstacle to the success of an otherwise promising technique.
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Köhler, B., Kehlenbach, M., Bilgram, R. (2004). Optical Measurement and Visualization of Transient Ultrasonic Wave Fields. In: Arnold, W., Hirsekorn, S. (eds) Acoustical Imaging. Acoustical Imaging, vol 27. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-2402-3_40
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DOI: https://doi.org/10.1007/978-1-4020-2402-3_40
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