摘要
利用MTS和旋转盘式杆-杆型冲击拉伸试验装置,在高应变率、大应变率范围条件下(0.01～1 500s^(-1))研究了应变率对高强PVA纤维束力学性能的影响;同时,利用扫描电子显微镜考察了纤维材料在不同应变率下的微观断裂机理。
The dynamic tensile tests of high strength PVA (Kuralon 7901 - 1) are carried out under high strain rate and a wide range of strin rates (0.01-1999 s-1 ) by use of MTS and bar-bar tensile impact apparatus. The influence of strain rates on mechanical properties of PVA is studied. Meanwhile, micro fracture mechanisms of fiber bundles at different strain rate are examined by means of SEM.
出处
《中国纺织大学学报》
CSCD
2000年第3期90-94,共5页
Journal of China Textile University
基金
浙江省自然科学基金资助项目(599113)
关键词
高强PVA
冲击拉伸
高应变率
微观断裂机理
high strength PVA, high strain rate, tensile impact, micro fracture mechanism
