Picture of wind turbine against blue sky

Open Access research with a real impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

The Energy Systems Research Unit (ESRU) within Strathclyde's Department of Mechanical and Aerospace Engineering is producing Open Access research that can help society deploy and optimise renewable energy systems, such as wind turbine technology.

Explore wind turbine research in Strathprints

Explore all of Strathclyde's Open Access research content

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.