Picture of a black hole

Strathclyde Open Access research that creates ripples...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of research papers by University of Strathclyde researchers, including by Strathclyde physicists involved in observing gravitational waves and black hole mergers as part of the Laser Interferometer Gravitational-Wave Observatory (LIGO) - but also other internationally significant research from the Department of Physics. Discover why Strathclyde's physics research is making ripples...

Strathprints also exposes world leading research from the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

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.

Full text not available in this repository. (Request a copy from the Strathclyde author)

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.