拉伸应变速率与化纤长丝应力应变关系探讨

Effect of Tensile Strain Rate on Stress-Strain Properties of Synthetic Filaments

本文探讨了芳纶、玻纤、高强PE、高强PP、高强PET、普通PET共六种长丝纤维在拉伸应变速率分别为5%、20%、50%、100%、300%、500%min下的拉伸应力应变性能,所表现出的断裂应力、断裂应变随拉伸应变速率的增加,不呈通常认为的单调递增或单调递减的趋势,而呈现上下波动的规律.

The tensile stress-strain properties of six kinds of filaments of Twaron? glass, PET and high tenacity PE, PP,PET are tested at the conditions of six strain rates:5%,20%,50%,100%,300%,500% min..The break stress and break strain of these filaments don't increase or decrease constantly, and on the constrary,fluctuate when the strain rate increases