Edwards, R. S. (Rachel S.), Dutton, B. (Ben) and Clough, A. R. (2012) Interaction of laser generated ultrasonic waves with wedge-shaped samples. Applied Physics Letters, Vol.100 (No.18). p. 184102. doi:10.1063/1.4711021 ISSN 0003-6951.

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Abstract

Wedge-shaped samples can be used as a model of acoustic interactions with samples ranging from ocean wedges, to angled defects such as rolling contact fatigue, to thickness measurements of samples with non-parallel faces. We present work on laser generated ultrasonic waves on metal samples; one can measure the dominant Rayleigh-wave mode, but longitudinal and shear waves are also generated. We present calculations, models, and measurements giving the dependence of the arrival times and amplitudes of these modes on the wedge apex angle and the separation of generation and detection points, and hence give a measure of the wedge characteristics.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH):	Ultrasonic waves, Wedges
Journal or Publication Title:	Applied Physics Letters
Publisher:	American Institute of Physics
ISSN:	0003-6951
Official Date:	2012
Dates:	Date Event 2012 Published
Volume:	Vol.100
Number:	No.18
Page Range:	p. 184102
DOI:	10.1063/1.4711021
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Date of first compliant deposit:	23 December 2015
Date of first compliant Open Access:	23 December 2015
Funder:	European Research Council (ERC)
Grant number:	202735 (ERC)

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