| 不同应变率下Kevlar49纤维束拉伸力学性能的实验研究 |
| |
| 引用本文： | 汪洋,夏源明.不同应变率下Kevlar49纤维束拉伸力学性能的实验研究[J].复合材料学报,1999,16(1):45-51. |
| |
| 作者姓名： | 汪洋 夏源明 |
| |
| 作者单位： | 中国科学技术大学力学与机械工程系,合肥,230026 |
| |
| 摘 要： | 利用M TS810材料试验机及旋转盘式杆杆型冲击拉伸试验装置对Kevlar49纤维束进行了准静态拉伸及冲击拉伸实验研究, 首次在应变率为10-4/ s～ 103/s 范围内得到了Kevlar49纤维束完整的应力应变曲线。实验结果表明, Kevlar49纤维束的力学性能是与应变率相关的。在低应变率下Kevlar49纤维束对应变率不太敏感, 但比玻璃纤维束高; 在高应变率下Kevlar49纤维束对应变率敏感, 但不如玻璃纤维束强烈; 中应变率区是Kevlar49纤维束由应变率不太敏感到应变率敏感的过渡区。
|
| 关 键 词： | Kevlar 纤维束 冲击拉伸 应变率相关 |
| 收稿时间： | 1997-07-29 |
| 修稿时间： | 1998-03-11 |
EXPERIMENTAL STUDY ON THE TENSILE MECHANICAL BEHAVIOR OF KEVLAR49 FIBRE BUNDLES UNDER DIFFERENT STRAIN RATES |
| |
| Wang Yang,Xia Yuanming.EXPERIMENTAL STUDY ON THE TENSILE MECHANICAL BEHAVIOR OF KEVLAR49 FIBRE BUNDLES UNDER DIFFERENT STRAIN RATES[J].Acta Materiae Compositae Sinica,1999,16(1):45-51. |
| |
| Authors: | Wang Yang Xia Yuanming |
| |
| Affiliation: | Dept. of Mechanics and Mechanical Engineering,University of Science and Technology of China |
| |
| Abstract: | The experiments on Kevlar49 fibre bundles under quasi static tension and tensile impact were performed in MTS810 and Bar Bar Tensile Impact Apparatus, respectively. The stress strain curves of Kevlar49 fibre bundles were obtained at strain rates ranging from 10 -4 /s to 10 3/s. The test results show that the mechanical behavior of Kevlar49 fibre bundles is rate dependent. Compared with glass fibre bundles, the rate sensitive degree of Kevlar49 fibre bundles is higher in the quasi static loading region, while it is less great in the high rate loading region. |
| |
| Keywords: | fibre bundles tensile impact strain rate dependence |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《复合材料学报》浏览原始摘要信息 |
|
点击此处可从《复合材料学报》下载全文 |
