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Sensors 2017, 17(4), 667; doi:10.3390/s17040667

Fiber Optic Sensor Embedment Study for Multi-Parameter Strain Sensing

1
PRES LUNAM IFSTTAR CS4 Route de Bouaye, 44344 Bouguenais, France
2
Institut de Recherche Technologique (IRT) Jules VERNE, Chemin du Chaffault, 44340 Bouguenais, France
3
Components and Systems Department, Université Paris-Est, IFSTTAR, 77420 Champs-sur-Marne, France
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 13 December 2016 / Revised: 9 February 2017 / Accepted: 10 February 2017 / Published: 23 March 2017
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [4814 KB, uploaded 24 March 2017]   |  

Abstract

The fiber optic sensors (FOSs) are commonly used for large-scale structure monitoring systems for their small size, noise free and low electrical risk characteristics. Embedded fiber optic sensors (FOSs) lead to micro-damage in composite structures. This damage generation threshold is based on the coating material of the FOSs and their diameter. In addition, embedded FOSs are aligned parallel to reinforcement fibers to avoid micro-damage creation. This linear positioning of distributed FOS fails to provide all strain parameters. We suggest novel sinusoidal sensor positioning to overcome this issue. This method tends to provide multi-parameter strains in a large surface area. The effectiveness of sinusoidal FOS positioning over linear FOS positioning is studied under both numerical and experimental methods. This study proves the advantages of the sinusoidal positioning method for FOS in composite material’s bonding. View Full-Text
Keywords: structural health monitoring (SHM); fiber optic sensors; composite material; bonding; numerical simulation; finite element analysis; distributed sensors; multi-axial; multi-parameter strain structural health monitoring (SHM); fiber optic sensors; composite material; bonding; numerical simulation; finite element analysis; distributed sensors; multi-axial; multi-parameter strain
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Drissi-Habti, M.; Raman, V.; Khadour, A.; Timorian, S. Fiber Optic Sensor Embedment Study for Multi-Parameter Strain Sensing. Sensors 2017, 17, 667.

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