Noncontact material evaluation for characterization and wear detection using laser-generated ultrasound and interferometric detection

Thursby, G., Culshaw, B., Sorazu Lucio, B. , Atique, S. and Dong, F. (2004) Noncontact material evaluation for characterization and wear detection using laser-generated ultrasound and interferometric detection. In: Smart Structures and Materials 2004: Smart Sensor Technology and Measurement Systems, San Diego, CA, USA, 14 Mar 2004, pp. 296-304. (doi: 10.1117/12.549024)

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Publisher's URL: http://dx.doi.org/10.1117/12.549024

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 percent. The approach may be applied to inspection regions with dimension in the range microns to centimetres.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Sorazu Lucio, Dr Borja
Authors: Thursby, G., Culshaw, B., Sorazu Lucio, B., Atique, S., and Dong, F.
College/School:College of Science and Engineering > School of Physics and Astronomy
ISSN:0277-786X

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