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Crack detection of a tensile steel specimen using plastic optical fibre sensor

Crack detection of a tensile steel specimen using plastic optical fibre sensor In this paper, results demonstrating the use of plastic optical fibre (POF) sensors for crack detection and localisation in tensile steel specimen are presented. POF is employed to detect cracks using a high-resolution photon-counting optical time-domain reflectrometer (-OTDR). Although OTDR is an established technique in the telecommunication industry, its application for crack detection is new. The study shows that by using -OTDR and graded-index perfluorinated POF, it is possible to detect and locate the position of crack in a host structure loaded in tension, with detection accuracy of within 10 millimetres. Keywords: plastic optical fibre; POF; sensor; steel structures; optical time-domain reflectrometer; OTDR; damage detection. Reference to this paper should be made as follows: Suresh, R. and Kuang, K.S.C. (2016) `Crack detection of a tensile steel specimen using plastic optical fibre sensor', Int. J. Structural Engineering, Vol. 7, No. 4, pp.367­377. Biographical notes: Rupali Suresh previously worked at the Department of Civil and Environmental Engineering, National University of Singapore, Singapore. She received her Master's degree in Physics from IIT Delhi and a PhD from Nanyang Technological University, Singapore. She then worked as a Research Fellow at the National University of Singapore. She is currently working as a Scientific http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Structural Engineering Inderscience Publishers

Crack detection of a tensile steel specimen using plastic optical fibre sensor

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Publisher
Inderscience Publishers
Copyright
Copyright © 2016 Inderscience Enterprises Ltd.
ISSN
1758-7328
eISSN
1758-7336
DOI
10.1504/IJSTRUCTE.2016.079285
Publisher site
See Article on Publisher Site

Abstract

In this paper, results demonstrating the use of plastic optical fibre (POF) sensors for crack detection and localisation in tensile steel specimen are presented. POF is employed to detect cracks using a high-resolution photon-counting optical time-domain reflectrometer (-OTDR). Although OTDR is an established technique in the telecommunication industry, its application for crack detection is new. The study shows that by using -OTDR and graded-index perfluorinated POF, it is possible to detect and locate the position of crack in a host structure loaded in tension, with detection accuracy of within 10 millimetres. Keywords: plastic optical fibre; POF; sensor; steel structures; optical time-domain reflectrometer; OTDR; damage detection. Reference to this paper should be made as follows: Suresh, R. and Kuang, K.S.C. (2016) `Crack detection of a tensile steel specimen using plastic optical fibre sensor', Int. J. Structural Engineering, Vol. 7, No. 4, pp.367­377. Biographical notes: Rupali Suresh previously worked at the Department of Civil and Environmental Engineering, National University of Singapore, Singapore. She received her Master's degree in Physics from IIT Delhi and a PhD from Nanyang Technological University, Singapore. She then worked as a Research Fellow at the National University of Singapore. She is currently working as a Scientific

Journal

International Journal of Structural EngineeringInderscience Publishers

Published: Jan 1, 2016

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