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| 聚丙烯纤维增强混凝土分离式Hopkinson压杆压缩试验研究 | |
| 引用本文： | 胡金生,周早生,唐德高,陈向欣. 聚丙烯纤维增强混凝土分离式Hopkinson压杆压缩试验研究[J]. 土木工程学报, 2004, 37(6): 12-15 |
| 作者姓名： | 胡金生 周早生 唐德高 陈向欣 |
| 作者单位： | 1. 总参工程兵第四设计研究院 2. 解放军理工大学 3. 第二炮兵工程设计研究所 |
| 摘 要： | 采用改进后的变截面大尺寸Hopkinson压杆 ,对直径 62mm的聚丙烯纤维混凝土和素混凝土试件进行了三种应变率范围的冲击压缩试验 ,得到了不同应变率下试件的动态压缩强度及应力应变全过程曲线。结果表明 ,在冲击压缩的高应变率加载条件下 ,聚丙烯纤维混凝土的破坏强度与素混凝土的大致相同 ,但其韧性要明显好于素混凝土。 |
| 关 键 词： | 分离式Hopkinson压杆 聚丙烯纤维增强混凝土 动态本构关系 |
| 文章编号： | 1000-131X(2004)06-0012-04 |
| 修稿时间： | 2002-04-28 |
STUDY OF SHPB COMPRESSION EXPERIMENT FOR POLYPROPYLENE FIBER REINFORCED CONCRETE |
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| Hu Jinsheng. STUDY OF SHPB COMPRESSION EXPERIMENT FOR POLYPROPYLENE FIBER REINFORCED CONCRETE[J]. China Civil Engineering Journal, 2004, 37(6): 12-15 | |
| Authors: | Hu Jinsheng |
| Affiliation: | Hu Jinsheng(The 4th Engineering Design & Research Institute of Engineer)Zhou Zaosheng Tang Degao Chen Xiangxin(People's Liberation Army University of Science and Technology) (Engineering Design Institute of Second Artillery) |
| Abstract: | Using the larg-size improved Hopkinson pressure bar with variable cross-sections, that a shock compression test within three kinds strain rates range of the 62mm diameter plain concrete and polypropylene fiber reinforced concrete specimens havebeen carried out,then the dynamic compression strengths and the overall-process curves for stress-strain of specimens under different strain rates are obtained.The experimental results indicate that under the shock compression with high strain rate loading condition,The collapsing strength of polypropylene fiber reinforced concrete is roughly same with plain concrete,but the tenacity of polypropylene fiber reinforced concrete is obviously better than plain concrete. |
| Keywords: | Split-Hopkinson Pressure-Bar(SHPB) poypropylene fiber reinforced concrete dynamic constive relation |
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