Sensing of Damage in Glass Fiber Composites by Adding Carbon Nanotubes
Advanced fiber-reinforced polymer composites are known to possess outstanding specific strength and stiffness and their use in structural applications continues to expand.Most structural composites are susceptible to the formation of micro-scale damage in polymer matrix under adverse conditions which has significant implications on the durability and performance of fiber composites.Thus,it is imperative to detect the initiation and evolution of damage in composites long before their catastrophic failure.In this report,our recent research in sensing of micro-crack in matrix in situ and in real time for glass fiber composites was reviewed.Carbon nanotubes were dispersed into glass fiber composites by three roll mill technique.A resistance parameter was utilized to quantitatively characterize damage initiation and propagation.Damage mechanisms and development were investigated under tension,fatigue loadings.This research demonstrates the feasibility and benefits of electrical resistance measurements in the sensing of micro-scale damage for fiber composites using carbon nanotubes and offers the potential for in-service health monitoring of composite structures.
Carbon Nanotubes Glass Fiber Composites Electrical Resistance
Limin Gaoa Xinlin Qing
Beijing Aeronautical Science and Technology Research Institute,Commercial Aircraft Corporation of China, Ltd, Beijing, China
国际会议
济南
英文
68-76
2013-05-18（万方平台首次上网日期，不代表论文的发表时间）