Investigation of embedded near infrared fibre Bragg grating (FBG) sensors (830 nm) in structural health monitoring of glass fibre composite structures

Epaarachchi, Jayantha A. and Canning, John and Stevenson, Michael (2008) Investigation of embedded near infrared fibre Bragg grating (FBG) sensors (830 nm) in structural health monitoring of glass fibre composite structures. In: OFS-19: 19th International Conference on Optical Fibre Sensors , 14-18 April 2008, Perth, Australia.

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Abstract

The transmitted spectrums of conventional FBG sensors operating in near infrared region (Bragg wavelength ~ 830nm) embedded in E-Glass/Vinylester composite sample were investigated at static and after fatigue loading. Also transmitted waveforms of a FBG attached to a surface of single layer E-Glass/Vinylester composite sample which has a purposely created hole closer to attached FBG sensor were examined in order to understand the FBG response in a vicinity of a void/damage, under static loading situation. As a consequence, some conclusions were made on the sensitivity and durability of the use of FBG sensors fabricated by conventional writing techniques in long term health monitoring system of composite structures.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Poster)
Refereed: Yes
Item Status: Live Archive
Additional Information: Poster no. 75
Depositing User: Dr Jayantha Epaarachchi
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 24 Apr 2009 05:14
Last Modified: 22 Aug 2014 02:50
Uncontrolled Keywords: structural health monitoring; FBG sensors; fatigue; composites
Fields of Research (FOR2008): 09 Engineering > 0901 Aerospace Engineering > 090103 Aerospace Structures
09 Engineering > 0913 Mechanical Engineering > 091399 Mechanical Engineering not elsewhere classified
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: doi: 10.1117/12.786896
URI: http://eprints.usq.edu.au/id/eprint/4838

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