| 高掺量聚丙烯纤维混凝土动力特性的SHPB试验 |
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| 引用本文： | 侯晓峰,方秦,张育宁,李浩.高掺量聚丙烯纤维混凝土动力特性的SHPB试验[J].解放军理工大学学报,2005,6(4):351-354. |
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| 作者姓名： | 侯晓峰 方秦 张育宁 李浩 |
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| 作者单位： | 解放军理工大学,工程兵工程学院,江苏,南京,210007;解放军理工大学,工程兵工程学院,江苏,南京,210007;解放军理工大学,工程兵工程学院,江苏,南京,210007;解放军理工大学,工程兵工程学院,江苏,南京,210007 |
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| 摘 要： | 为了研究高掺量聚丙烯纤维混凝土的动力特性，采用直径为74mm变截面Hopkinson压杆，对8组64块聚丙烯纤维混凝土试件进行了冲击压缩试验，得到了不同应变率范围下混凝土的动态抗压强度及应力-应变曲线，并给出了聚丙烯纤维混凝土动态抗压强度与应变率、纤维体积掺量以及静压强度之间的关系。分析认为，在10^1～10^2s^-1应变速率，聚丙烯纤维混凝土的动态强度提高比值与素混凝土基本一致。
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| 关 键 词： | 聚丙烯纤维 混凝土 SHPB试验 抗压强度 纤维体积掺量 |
| 文章编号： | 1009-3443(2005)04-0351-04 |
| 收稿时间： | 2005-06-06 |
| 修稿时间： | 2005年6月6日 |
SHPB test study on dynamic character istics
of polypropylene fiber concrete |
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| HOU Xiao-feng,FANG Qin,ZHANG Yu-ning and LI Hao.SHPB test study on dynamic character istics
of polypropylene fiber concrete[J].Journal of PLA University of Science and Technology(Natural Science Edition),2005,6(4):351-354. |
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| Authors: | HOU Xiao-feng FANG Qin ZHANG Yu-ning and LI Hao |
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| Institution: | Engineering Institute of Corps of Engineers,PLA Univ. of Sci. & Tech. , Nanjing 210007, China;Engineering Institute of Corps of Engineers,PLA Univ. of Sci. & Tech. , Nanjing 210007, China;Engineering Institute of Corps of Engineers,PLA Univ. of Sci. & Tech. , Nanjing 210007, China;Engineering Institute of Corps of Engineers,PLA Univ. of Sci. & Tech. , Nanjing 210007, China |
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| Abstract: | To study the dynamic characteristics of the high fiber volume percentage polypropylene fiber concrete (PFC), the dynamic tests were performed on 64 PFC specimens in 8 groups with different fiber volume percent and static strength by using the large-size Hopkinson pressure bar with variable cross-sections. The dynamic stress-strain curves in the range of strain rate of 10~1~10~2s~(-1) were obtained. The effects on dynamic compression strength by the strain rate, fiber volume percent and static strength were investigated. |
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| Keywords: | polypropylene fiber concrete SHPB test compression strength fiber volume percent |
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