Mechanical reliability of optical fibre sensors and SmartRods for tunnel displacement monitoring

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4 Citations (Scopus)

Abstract

A novel optical fibre sensing system has been developed using fibre Bragg gratings embedded in a SmartRod structure based on pultruded composite rods. A thorough investigation of the mechanical reliability of the fibres, gratings and whole SmartRod structure was made. Techniques used included tensile testing, static fatigue in bend and dynamic fatigue in bend, in a variety of environments. The strength and interface properties of the whole structure were also tested. The mechanical reliability of the system was found to be very adequate for the proposed tunnel applications.
Original languageEnglish
Pages (from-to)382-390
Number of pages9
JournalSmart Materials and Structures
Volume16
Issue number2
DOIs
Publication statusPublished - 1 Apr 2007

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