西南交通大学学报 2008, 43(5) 638-642 DOI:     ISSN: 0258-2724 CN: 51-1277/U

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本文关键词相关文章
冲击拉伸
动态拉伸试验
拉伸性能
纤维束
分离式Hopkinson拉杆
本文作者相关文章
王庭辉
宋顺成
王明超
孙志杰
张佐光
PubMed
Article by WANG Tinghui
Article by SONG Shuncheng
Article by WANG Mingchao
Article by SUN Zhijie
Article by ZHANG Zuoguang

高强度纤维束的动态拉伸性能

王庭辉1, 宋顺成1, 王明超2, 孙志杰2, 张佐光2

1. 西南交通大学力学与工程学院, 四川, 成都, 610031;
2. 北京航空航天大学材料科学与工程学院, 北京, 100083

摘要

用动态拉伸装置及薄臂杆组合夹头测试了5种高强度纤维(PBO,UHMWPE,Kevlar,Glass fiber S-2,Basalt)束的动态力学性能.动态拉伸和静态拉伸结果的对比表明,5种纤维束具有应变率效应.5种纤维束的动态抗拉强度均高于静态抗拉强度,除UHMWPE外动态断裂应变均大于静态断裂应变.应变率效应对5种纤维束动态拉伸失效应变的影响无统一的规律.

关键词 冲击拉伸   动态拉伸试验   拉伸性能   纤维束   分离式Hopkinson拉杆  

Dynamic Tensile Properties of High Strength Fiber Bundles

WANG Tinghui1, SONG Shuncheng1, WANG Mingchao2, SUN Zhijie2, ZHANG Zuoguang2

1. School of Mechanics and Eng., Southwest Jiaotong University, Chengdu 610031, China;
2. School of Materials Science and Eng., Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Abstract:

The dynamic tensile properties of 5 types of high strength fiber bundles(PBO,UHMWPE,Kevlar,Glass fiber S-2,and Basalt) were measured using a dynamic tensile test device and a combination clamp with thin-walled bars.The comparison between the dynamic tensile and the static properties shows obvious strain rate effects.The dynamic tensile strengths of all the fiber bundles are higher than those of the static ones,and the dynamic tensile fracture strains of all the fiber bundles except UHMWPE are also larger than those of the static ones.There is no an identical strain rate effect on dynamic failure strains for the 5 types of fiber bundles.

Keywords: tensile impact   dynamic tensile test   tensile property   fiber bundle   split Hopkinson tensile bar  
收稿日期 2007-11-20 修回日期  网络版发布日期  
DOI:
基金项目:

通讯作者:
作者简介: 王庭辉(1982- ),男,博士研究生,研究方向为高速冲击动力学,电话:13880984352,E-mail:wangtinghui425@163.com

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