Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/77340
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dc.contributorDepartment of Mechanical Engineeringen_US
dc.creatorLi, Yen_US
dc.creatorWang, Ken_US
dc.creatorSu, Zen_US
dc.date.accessioned2018-07-30T08:27:40Z-
dc.date.available2018-07-30T08:27:40Z-
dc.identifier.issn1424-8220en_US
dc.identifier.urihttp://hdl.handle.net/10397/77340-
dc.language.isoenen_US
dc.publisherMolecular Diversity Preservation International (MDPI)en_US
dc.rights© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.rightsThe following article: Li, Y., Wang, K., & Su, Z. (2018). Dispersed Sensing Networks in Nano-Engineered Polymer Composites: From Static Strain Measurement to Ultrasonic Wave Acquisition. Sensors (Switzerland), 18(5), is available at https//doi.org/10.3390/s18051398en_US
dc.subjectGraphene nanoparticleen_US
dc.subjectNanocomposite sensoren_US
dc.subjectSelf-sensingen_US
dc.subjectStructural health monitoringen_US
dc.subjectUltrasonic guided wavesen_US
dc.titleDispersed sensing networks in nano-engineered polymer composites : from static strain measurement to ultrasonic wave acquisitionen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.volume18en_US
dc.identifier.issue5en_US
dc.identifier.doi10.3390/s18051398en_US
dcterms.abstractSelf-sensing capability of composite materials has been the core of intensive research over the years and particularly boosted up by the recent quantum leap in nanotechnology. The capacity of most existing self-sensing approaches is restricted to static strains or low-frequency structural vibration. In this study, a new breed of functionalized epoxy-based composites is developed and fabricated, with a graphene nanoparticle-enriched, dispersed sensing network, whereby to self-perceive broadband elastic disturbance from static strains, through low-frequency vibration to guided waves in an ultrasonic regime. Owing to the dispersed and networked sensing capability, signals can be captured at any desired part of the composites. Experimental validation has demonstrated that the functionalized composites can self-sense strains, outperforming conventional metal foil strain sensors with a significantly enhanced gauge factor and a much broader response bandwidth. Precise and fast self-response of the composites to broadband ultrasonic signals (up to 440 kHz) has revealed that the composite structure itself can serve as ultrasound sensors, comparable to piezoceramic sensors in performance, whereas avoiding the use of bulky cables and wires as used in a piezoceramic sensor network. This study has spotlighted promising potentials of the developed approach to functionalize conventional composites with a self-sensing capability of high-sensitivity yet minimized intrusion to original structures.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationSensors (Switzerland), 2018, v. 18, no. 5, 1398en_US
dcterms.isPartOfSensors (Switzerland)en_US
dcterms.issued2018-
dc.identifier.scopus2-s2.0-85046699903-
dc.identifier.ros2017003389-
dc.identifier.artn1398en_US
dc.identifier.rosgroupid2017003263-
dc.description.ros2017-2018 > Academic research: refereed > Publication in refereed journalen_US
dc.description.validate201807 bcwhen_US
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumbera0235-n02en_US
dc.description.pubStatusPublisheden_US
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