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Non contact material evaluation for characterisation and wear detection using laser generated ultrasound and interferometric detection

Thursby, G.J. and Culshaw, B. and Sorazu, B.L. and Atique, S.H. and Dong, F. (2004) Non contact material evaluation for characterisation and wear detection using laser generated ultrasound and interferometric detection. In: SPIE Conference on Smart Structures and Materials 2004, 2004-03-15 - 2004-03-18, San Diego.

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Abstract

This paper describes an all optical non-contact technique to determine material properties in a mechanical structure. Using optical generation of ultrasound and interferometric optical detection to determine the dispersion curves for acoustic (Lamb) waves, readily available numerical algorithms have produced values of Young's Modulus and Poisson ratio with confidence limits of a few per cent. The approach may be applied to inspection regions with dimension in the range microns to centimetres.

Item type: Conference or Workshop Item (Paper)
ID code: 38471
Keywords: non-contact material, evaluation, characterisation, wear detection, laser generated ultrasound, interferometric detection, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Unknown Department
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 13 Mar 2012 16:24
    Last modified: 17 Jul 2013 15:18
    URI: http://strathprints.strath.ac.uk/id/eprint/38471

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