Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/128566
Type: Conference paper
Title: Stress monitoring using the change in velocity of Rayleigh waves
Author: Hughes, J.M.
Howie, J.
Vidler, J.
Mohabuth, M.
Citation: Proceedings of the 9th Australasian Congress on Applied Mechanics (ACAM 9), 2017 / vol.2017-November, pp.371-378
Publisher: Engineers Australia
Publisher Place: Sydney
Issue Date: 2017
ISBN: 9781925627022
Conference Name: 9th Australasian Congress on Applied Mechanics (ACAM) (27 Nov 2017 - 29 Nov 2017 : Sydney, Australia)
Statement of
Responsibility: 
J.M. Hughes, J. Howie, J. Vidler and M. Mohabuth
Abstract: This paper describes a novel technique for stress monitoring using Rayleigh waves. Nonlinearity within an Aluminium specimen generated as a result of applied stresses causes a change in the velocity of a Rayleigh wave due to the acoustoelastic effect. Measurement of the stress requires the second order (Lamé) and third order (Murnaghan) elastic constants, the latter of which is typically difficult to accurately measure due to their sensitivity to fatigue and residual stresses. Using the method presented, the Murnaghan constants are determined and the resultant stress predictions are compared to theoretically derived results with high accuracy.
Keywords: Rayleigh wave; Murnaghan constants; acoustoelastic effect; stress monitoring; material nonlinearity
Rights: © Engineers Australia
RMID: 0030114980
Grant ID: http://purl.org/au-research/grants/arc/DP160102233
Published version: https://search.informit.com.au/documentSummary;dn=393353414267323;res=IELENG
Appears in Collections:Mechanical Engineering conference papers

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