Vibration based structural health monitoring of adhesively bonded composite scarf repairs

White, Caleb, Whittingham, Brendan, Li, Henry C. H., Herszberg, Israel and Mouritz, Adrian P. (2007). Vibration based structural health monitoring of adhesively bonded composite scarf repairs. In: Martin Veidt, Faris Albermani, Bill Daniel, John Griffiths, Doug Hargreaves, Ross McAree, Paul Meehan and Andy Tan, Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007). 5th Australasian Congress on Applied Mechanics (ACAM 2007), Brisbane, Australia, (198-203). 10-12 December, 2007.

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Author White, Caleb
Whittingham, Brendan
Li, Henry C. H.
Herszberg, Israel
Mouritz, Adrian P.
Title of paper Vibration based structural health monitoring of adhesively bonded composite scarf repairs
Conference name 5th Australasian Congress on Applied Mechanics (ACAM 2007)
Conference location Brisbane, Australia
Conference dates 10-12 December, 2007
Proceedings title Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007)
Place of Publication Brisbane, Australia
Publisher Engineers Australia
Publication Year 2007
Year available 2008
Sub-type Fully published paper
ISBN 0 8582 5862 5
Editor Martin Veidt
Faris Albermani
Bill Daniel
John Griffiths
Doug Hargreaves
Ross McAree
Paul Meehan
Andy Tan
Volume 1
Start page 198
End page 203
Total pages 6
Collection year 2007
Language eng
Abstract/Summary Structural health monitoring (SHM) may be applied to bonded composite repairs to enable the continuous through-life assessment of structural integrity. Further, adhesively bonded joints are an ideal starting point for real-time, in-situ monitoring due to knowledge of mechanisms and locations of failure. The development of a SHM technique for the detection of debonding in scarf and overply repairs based on the frequency response of the repaired structure is described in this paper. Experimental investigations were conducted on representative carbon / epoxy composite scarf and overply joints. Piezoelectric elements were used to excite and measure the response of the repaired structure. The frequency response signature of the repaired structure with simulated debonds was found to differ significantly from that of the undamaged repair for two sets of boundary conditions. This demonstrates the potential of this technique for the SHM of scarf repaired composite structures.
Subjects 290501 Mechanical Engineering
0913 Mechanical Engineering
Keyword Adhesive
Frequency response
Piezoelectric
Repair
Scarf
Structural health monitoring
Q-Index Code E1

 
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Created: Mon, 10 Mar 2008, 14:19:29 EST by Thelma Whitbourne on behalf of School of Engineering