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. (https://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 per cent. The approach may be applied to inspection regions with dimension in the range microns to centimetres.

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• Item metadata

  Item type:	Conference or Workshop Item(Paper)
  ID code:	38471
  Dates:	Date Event March 2004 Published
  Subjects:	Technology > Electrical engineering. Electronics Nuclear engineering
  Department:	Faculty of Engineering > Electronic and Electrical Engineering Unknown Department
  Depositing user:	Pure Administrator
  Date deposited:	13 Mar 2012 16:24
  Last modified:	09 Apr 2024 05:03
  URI:	https://strathprints.strath.ac.uk/id/eprint/38471