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dc.contributor.authorOzbey, Burak
dc.contributor.authorDemir, Hilmi Volkan
dc.contributor.authorKurc, Ozgur
dc.contributor.authorErturk, Vakur B.
dc.contributor.authorAltintas, Ayhan
dc.identifier.otherDOI: 10.3390/s141019609
dc.descriptionWe gratefully acknowledge the support from The Scientific and Technological Research Council of Turkey (TUBITAK) EEEAG grant No. 112E255. We also thank Ramazan Ozcelik and Ozlem Temel for their valuable efforts in conducting of the experiments in Middle East Technical University. H. V. D. also gratefully acknowledges the support from European Science Foundation (EURYI), as well as TUBITAK BIDEB and the Turkish National Academy of Sciences (TUBA).en_US
dc.description.abstractWe report remote strain and displacement measurement during elastic and plastic deformation using a metamaterial-based wireless and passive sensor. The sensor is made of a comb-like nested split ring resonator (NSRR) probe operating in the near-field of an antenna, which functions as both the transmitter and the receiver. The NSRR probe is fixed on a standard steel reinforcing bar (rebar), and its frequency response is monitored telemetrically by a network analyzer connected to the antenna across the whole stress-strain curve. This wireless measurement includes both the elastic and plastic region deformation together for the first time, where wired technologies, like strain gauges, typically fail to capture. The experiments are further repeated in the presence of a concrete block between the antenna and the probe, and it is shown that the sensing system is capable of functioning through the concrete. The comparison of the wireless sensor measurement with those undertaken using strain gauges and extensometers reveals that the sensor is able to measure both the average strain and the relative displacement on the rebar as a result of the applied force in a considerably accurate way. The performance of the sensor is tested for different types of misalignments that can possibly occur due to the acting force. These results indicate that the metamaterial-based sensor holds great promise for its accurate, robust and wireless measurement of the elastic and plastic deformation of a rebar, providing beneficial information for remote structural health monitoring and post-earthquake damage assessment.en_US
dc.description.sponsorshipTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) 112E255 European Science Foundation (ESF) Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) Turkish Academy of Sciencesen_US
dc.relation.ispartofseriesVolume: 14 Issue: 10 Pages: 19609-19621;
dc.subjectdisplacement sensoren_US
dc.subjectstrain sensoren_US
dc.subjectelastic-plastic regionen_US
dc.subjectstructural health monitoringen_US
dc.titleWireless Measurement of Elastic and Plastic Deformation by a Metamaterial-Based Sensoren_US
dc.contributor.departmentAGÜ, Mühendislik Fakültesi, Elektrik & Elektronik Mühendisliği Bölümüen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US

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