Effects of the self distortions of embedded FBG sensors on spectral response due to torsional and combined loads

Kahandawa, Gayan C. and Epaarachchi, Jayantha A. and Wang, Hao and Canning, John (2010) Effects of the self distortions of embedded FBG sensors on spectral response due to torsional and combined loads. In: 3rd Asia-Pacific Workshop on Structural Health Monitoring, 30 Nov-2 Dec 2010, Tokyo, Japan.

Abstract

The response spectra of FBG sensors embedded in a cylindrical hollow composite beam, under torsion and combined torsion - bending loading, were obtained. It has been seen that the spectrum of FBG has been chirped due to torsional loading. Further, the spectra of the embedded FBGs located at the vicinity of a point of damage inside the tube under torsional and combined loading conditions were also obtained, and found that the spectrum has been chirped. These observations have suggested that the spectral distortion of an embedded FBG is not only due to damage but also the loading type. Additionally embedded FBG sensors in flat composite plates were subjected to lateral pressure and torsional loads independently in order to investigate further this behaviour. In all cases similar chirp was observed when torsional and combined loads are applied.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Author version not held.
Depositing User: Dr Gayan Chanaka Kahandawa Appuhamillage
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 05 Jan 2011 06:18
Last Modified: 13 Feb 2012 00:54
Uncontrolled Keywords: FBG Sensors, composite materials, structural health monitoring
Fields of Research (FOR2008): 09 Engineering > 0901 Aerospace Engineering > 090103 Aerospace Structures
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0901 Aerospace Engineering > 090102 Aerospace Materials
Socio-Economic Objective (SEO2008): B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870399 Construction Materials Performance and Processes not elsewhere classified
URI: http://eprints.usq.edu.au/id/eprint/9314

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