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dc.contributor.authorBado, Mattia Francesco
dc.contributor.authorCasas Rius, Joan Ramon
dc.contributor.authorBarrias, Antonio Jose de Sousa
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.identifier.citationBado, M. F., Casas, J., Barrias, A. Performance of Rayleigh-based Distributed Optical Fiber Sensors bonded to reinforcing bars in bending. "Sensors", Setembre 2018, vol. 18, núm. 9, p. 1-23.
dc.description.abstractDistributed Optical Fiber Sensors (DOFSs), thanks to their multiple sensing points, are ideal tools for the detection of deformations and cracking in reinforced concrete (RC) structures, crucial as a means to ensure the safety of infrastructures. Yet, beyond a certain point of most DOFS-monitored experimental tests, researchers have come across unrealistic readings of strain which prevent the extraction of further reliable data. The present paper outlines the results obtained through an experimental test aimed at inducing such anomalies to isolate and identify the physical cause of their origin. The understanding of such a phenomenon would enable DOFS to become a truly performant strain sensing technique. The test consists of gradually bending seven steel reinforcement bars with a bonded DOFS under different conditions such as different load types, bonding adhesives, bar sections and more. The results show the bonding adhesives having an influence on the DOFS performance but not on the rise of anomalies while the reasons triggering the latter are narrowed down from six to two, reaching a strain threshold and a change in structure’s deformative behavior. Further planned research will allow identification of the cause behind the rise of strain-reading anomalies.
dc.format.extent23 p.
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.rightsAttribution 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
dc.subject.lcshOptical fiber detectors
dc.subject.lcshStructural health monitoring
dc.subject.otherstructural health monitoring
dc.subject.otherdamage identification
dc.subject.otherdistributed optical fiber sensors
dc.subject.otherRayleigh backscattering
dc.subject.otherreinforced concrete members
dc.subject.othersteel reinforcement bars
dc.subject.otherstrain-reading anomalies
dc.subject.otherspectral shift quality
dc.titlePerformance of Rayleigh-based Distributed Optical Fiber Sensors bonded to reinforcing bars in bending
dc.subject.lemacDetectors de fibra òptica
dc.subject.lemacConstrucció en formigó
dc.subject.lemacControl d'estructures (Enginyeria)
dc.contributor.groupUniversitat Politècnica de Catalunya. EC - Enginyeria de la Construcció
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
upcommons.citation.authorBado, M. F.; Casas, J.; Barrias, A.

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Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution 3.0 Spain