| 研究混凝土材料动态力学性能的实验技术 |
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| 引用本文： | 胡时胜. 研究混凝土材料动态力学性能的实验技术[J]. 中国科学技术大学学报, 2007, 37(10): 1312-1319 |
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| 作者姓名： | 胡时胜 |
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| 作者单位： | 中国科学技术大学中国科学院材料力学行为和设计重点实验室,安徽合肥,230027 |
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| 摘 要： | 采用波形整形技术、万向头技术和应变直接测量技术测量了混凝土材料的动态应力-应变曲线;通过损伤"冻结"试验及相应的MTS静态试验研究了混凝土材料的损伤演化规律;利用Hopkinson压杆技术直接测得层裂信号,进而可确定混凝土材料的层裂强度.
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| 关 键 词： | 混凝土 Hopkinson压杆技术 动态力学性能 损伤演化 层裂强度 |
| 文章编号： | 0253-2778（2007）10-1312-08 |
| 修稿时间： | 2007-06-28 |
Experimental techniques for studying dynamic mechanical behaviors of concrete |
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| HU Shi-sheng. Experimental techniques for studying dynamic mechanical behaviors of concrete[J]. Journal of University of Science and Technology of China, 2007, 37(10): 1312-1319 |
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| Authors: | HU Shi-sheng |
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| Affiliation: | CAS Key Laboratory of Mechanical Behavior and Design of Materials University of Science and Technology of China, Hef ei 230027, China |
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| Abstract: | Pulse shaping technique,gimbal micro-adjusting technique and experiments using strain gauge to measure the dynamic stress-strain curve of concrete directly were introduced.The equation of damage evolution of concrete was obtained using the so-called 'freezing in' damage test and quasistatic(MTS) test.The spalling signal were recorded directly by the split Hopkinson pressure bar(SHPB) technique,and the spalling strength of a long concrete rod was determined. |
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| Keywords: | concrete Hopkinson pressure bar technique dynamic mechanical behaviors damage evolution spalling strength |
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