Comparing investigation of fixed-point bending fatigue properties of high performance fibers
A self-developed fixed-point bending fatigue test apparatus was introduced in this paper. The bending fatigue properties of high performance fibers such as Kevlar49, Kevlarl29, PBO and UHMWPE fiber were measured by using the apparatus introduced in this paper. Then their bending fatigue resistance and microstructure after bending fatigue were compared. The effects of pre -tension and bending angle on the bending fatigue lifetime of fibers had been studied. The rupture-end morphology of single fiber bending fatigue tests was observed by microscope. Bending fatigue failure mechanisms had been discussed according to the characteristics of fibers ruptureend morphologies. It was found that the pre-tension and bending angle had significant effects on the fatigue lifetime. There were differences in bending fatigue lifetime and the failure mechanisms of the four fibers.
Cai Guangming Yu Weidong
Textile materials and technology laboratory, Donghua University, Shanghai, China Textile materials and technology laboratory, Donghua University, Shanghai, China College of garment
国际会议
上海
英文
585-587
2009-05-27（万方平台首次上网日期，不代表论文的发表时间）