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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Official URL: http://dx.doi.org/10.1117/12.786896

Identification Number or DOI: doi: 10.1117/12.786896

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.

Item Type:	Conference or Workshop Item (Commonwealth Reporting Category E) (Poster)
Additional Information:	Poster no. 75
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
Subjects:	290000 Engineering and Technology > 290500 Mechanical and Industrial Engineering > 290501 Mechanical Engineering 290000 Engineering and Technology > 290200 Aerospace Engineering > 290203 Aerospace Structures 290000 Engineering and Technology > 291400 Materials Engineering > 291402 Composite Materials
Socio-Economic Objective (SEO2008):	E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
ID Code:	4838
Deposited By:	Dr Jayantha Epaarachchi
Deposited On:	24 Apr 2009 15:14
Last Modified:	23 Feb 2012 16:36

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