Fibre optic acoustic emission measurement technique for crack activity monitoring in civil engineering applications

Fibre Bragg grating based acoustic emission measurement technique is employed to monitor crack activity in civil engineering structures and sites. The feasibility and effectiveness of using fibre optic methods for crack activity monitoring is demonstrated with three example cases (a) railway ballast...

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Bibliographic Details
Published in2016 IEEE Sensors Applications Symposium (SAS) pp. 1 - 6
Main Authors Rajan, Ginu, Jinachandran, Sagar, Jiangtao Xi, Vinod, Jayan S., Moses, Tristan, Karekal, Shivakumar, Huijun Li, Prusty, B. Gangadhara
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2016
Subjects
Acoustic emission
acoustic emussuion
Acoustic measurements
cold cracks
crack activity railway ballast
Electronic ballasts
Fiber gratings
fibre Bragg grating
rock samples
Sensors
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Summary:Fibre Bragg grating based acoustic emission measurement technique is employed to monitor crack activity in civil engineering structures and sites. The feasibility and effectiveness of using fibre optic methods for crack activity monitoring is demonstrated with three example cases (a) railway ballast breakage (b) cold crack monitoring in welding (c) crack activity monitoring in rock samples. The successful laboratory demonstration results of the method shows the potential of using fibre optic acoustic emission method to monitor crack activities that can ensure the structural integrity of civil engineering structures. This will lead further large scale testing and validation of the technique.
DOI:10.1109/SAS.2016.7479851