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Low-velocity impact damage localization of GF/epoxy laminates by the embedded MWCNT@GF sensor network

By Yun Wan, Hailong Yang, Yiwen Yuan, Shen XH(沈昕慧), Yang B(杨斌), Yu Guo and Yu Xie


This paper presents the damage location technology in glass fiber reinforced epoxy (GF/epoxy) composite laminates subject to low-velocity impact. Multi-walled carbon nan-otube coated GF (MWCNT@GF) is designed and manufactured as the sensor. MWCNT@GF sensor is embedded into the laminates to form an in situ sensing network. Relative resis-tances of the sensors are recorded after the low-velocity impact test. An algorithm is compiled to deal with the relative resistance data and help showing the impact damage location on a contour map. Results show that the in situ monitoring method with embedded MWCNT@GF sensor could locate the impact damage with high accuracy. (C) 2020 The Authors. Published by Elsevier B.V.</p

Topics: Low-velocity impact, In situ monitoring, Damage localization, MWCNT@GF sensor, Materials Science, Multidisciplinary, Metallurgy & Metallurgical Engineering, IMPROVED FRACTURE-TOUGHNESS, COMPOSITE, REINFORCEMENT, RESISTANCE, Materials Science, Metallurgy & Metallurgical Engineering
Year: 2020
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