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Showing papers by "Nik Rajic published in 2003"

Journal Article•DOI•
Detection of Disbond Growth in a Cyclically Loaded Bonded Composite Repair Patch Using Surface-mounted Piezoceramic Elements

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Y L Koh, Wing Kong Chiu1, Nik Rajic2, Steve C Galea3•
Monash University, Clayton campus1, DST Systems2, Defence Science and Technology Organisation3
01 Dec 2003-Structural Health Monitoring-an International Journal
TL;DR: In this article, an array of surface-mounted lead zirconate titanate elements (PZT) is used for the in situ detection of disbond growth in a bonded composite repair patch.
Abstract: This paper reports on an experimental study in which an array of surface-mounted lead zirconate titanate elements (PZT) are used for the in situ detection of disbond growth in a bonded composite repair patch. Two techniques are used to track the evolution of disbond growth: the transfer function method and the electromechanical impedance method. Both techniques were found to provide a reliable and robust basis for the detection of disbond growth. The results also demonstrate the importance of transducer placement relative to the disbond location as a factor in the sensitivity to disbond growth.

13 citations