title: A Spray-On Carbon Nanotube Artificial Neuron Strain Sensor for Composite Structural Health Monitoring.
abstract: We present a nanocomposite strain sensor (NCSS) to develop a novel structural health monitoring (SHM) sensor that can be easily installed in a composite structure. An NCSS made of a multi-walled carbon nanotubes (MWCNT)/epoxy composite was installed on a target structure with facile processing. We attempted to evaluate the NCSS sensing characteristics and benchmark compared to those of a conventional foil strain gauge. The response of the NCSS was fairly good and the result was nearly identical to the strain gauge. A neuron, which is a biomimetic long continuous NCSS, was also developed, and its vibration response was investigated for structural damage detection of a composite cantilever. The vibration response for damage detection was measured by tracking the first natural frequency, which demonstrated good result that matched the finite element (FE) analysis.
authors.affiliation: Manufacturing Automation R &amp; BD Group, Korea Institute of Industrial Technology, Chonan 143-701, Korea. grchoi@kitech.re.kr.
authors.forename: Gyeongrak
authors.initials: G
authors.lastname: Choi
authors.affiliation: Department of Architectural Engineering, Namseoul University, Cheonan 331-707, Korea. jwlee@nsu.ac.kr.
authors.forename: Jong Won
authors.initials: JW
authors.lastname: Lee
authors.affiliation: Department of Medical Device, Korea Institute of Machinery &amp; Materials, Daegu 711-880, Korea. jycha@kimm.re.kr.
authors.forename: Ju Young
authors.initials: JY
authors.lastname: Cha
authors.affiliation: Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources, Daejeon 305-350, Korea. kyjp7272@kigam.re.kr.
authors.forename: Young-Ju
authors.initials: YJ
authors.lastname: Kim
authors.affiliation: School of Mechanical Engineering, Sungkyunkwan University, Suwon 440-746, Korea. yschoi@skku.ac.kr.
authors.forename: Yeon-Sun
authors.initials: YS
authors.lastname: Choi
authors.affiliation: Smart Structures and Bio-Nanotechnology Laboratory, University of Cincinnati, Cincinnati, OH 45221, USA. Mark.J.Schulz@uc.edu.
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Schulz
authors.affiliation: Graduate School of Pukyong National University, Busan 608-739, Korea. moonck@pknu.ac.kr.
authors.forename: Chang Kwon
authors.initials: CK
authors.lastname: Moon
authors.affiliation: Graduate School of Pukyong National University, Busan 608-739, Korea. ktlim@pknu.ac.kr.
authors.forename: Kwon Tack
authors.initials: KT
authors.lastname: Lim
authors.affiliation: Graduate School of Pukyong National University, Busan 608-739, Korea. ksy1357@pukyong.ac.kr.
authors.forename: Sung Yong
authors.initials: SY
authors.lastname: Kim
authors.affiliation: Graduate School of Pukyong National University, Busan 608-739, Korea. ipkang@pknu.ac.kr.
authors.forename: Inpil
authors.initials: I
authors.lastname: Kang
mesh_terms: D015374:Biosensing Techniques / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D008991:Monitoring, Physiologic / Q000295:instrumentation / Q000379:methods*; D036103:Nanotechnology; D037742:Nanotubes, Carbon / Q000737:chemistry*; D009474:Neurons / Q000737:chemistry
chemical_list: D037742:Nanotubes, Carbon
keywords: artificial neuron; carbon nanotube; composites; damage detection; piezoresistivity; strain sensor; structural health monitoring