Effect of Temperature and Pre-tension on the Torsion Fatigue of Nomex and Kevlar 49 Filaments  

作　　者：刘敏 杜赵群 于伟东 

机构地区：[1]College of Textiles,Donghua University [2]College of Material and Textile Engineering,Jiaxing University

出　　处：《Journal of Donghua University(English Edition)》2011年第6期605-608,共4页东华大学学报（英文版）

摘　　要：The damage of aramid fibers occurs easily in torsion fatigue.So the effects of temperature and pre-tension on the torsion fatigue lifetimes of Nomex and Kevlar 49 fibers were characterized and compared by twist testing.The experimental results show that there is a linear relationship between the logarithm of the fatigue lifetime and the pre-tension,and an exponential attenuation with the raise of temperature,respectively;and the torsion fatigue lifetime of Nomex is distinctly longer than that of Kevlar 49 at every test condition,but it is less sensitive to the variation of the pre-tension and temperature.The damage of aramid fibers occurs easily in torsion fatigue.So the effects of temperature and pre-tension on the torsion fatigue lifetimes of Nomex and Kevlar 49 fibers were characterized and compared by twist testing.The experimental results show that there is a linear relationship between the logarithm of the fatigue lifetime and the pre-tension,and an exponential attenuation with the raise of temperature,respectively; and the torsion fatigue lifetime of Nomex is distinctly longer than that of Kevlar 49 at every test condition,but it is less sensitive to the variation of the pre-tension and temperature.

关 键 词：NOMEX Kevlar 49 TORSION FATIGUE 

分 类 号：TS102.1[轻工技术与工程—纺织工程]