Effects of Distance between Electrodes, Proximity of Electrodes to Damage,Plate Size, Carbon Nanotube (CNT) Concentrations and Damage Severity on Change in Electrical Resistance for In-situ Damage Detection, Location and Quantification in Glass Fiber/Epoxy Plates Containing CNT

摘要

This paper explores the possibility to use carbon nanotube (CNT) networks for the development of a structural health monitoring (SHM) technique for large polymer composite structures (LPCS) made of electrically non-conductive fibers and CNT networks using electrical resistance measurement (ERM). The effects of distance between electrodes closest to damage, proximity of electrodes to the damage location, plate size, CNT concentration and damage severity on the change in electrical resistance are investigated. The experimental results demonstrate that the change in electrical resistance increases with reducing distance between electrodes closest to damage, distance between electrodes and damage location, plate size, CNT concentration and increasing hole size.