基于三维Hopkinson杆的混凝土动态力学性能研究

徐松林; 王鹏飞; 赵坚; 胡时胜

doi:10.11883/1001-1455(2017)02-0180-06

基于三维Hopkinson杆的混凝土动态力学性能研究

doi: 10.11883/1001-1455(2017)02-0180-06

1.
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
2.
莫纳什大学土木工程系，澳大利亚墨尔本维多利亚 3180

基金项目:

Australian Research Council Project LE150100058

国家自然科学基金项目 11272304

国家自然科学基金项目 11472264

国家自然科学基金项目 11672286

详细信息

作者简介:
徐松林(1971—)，男，博士，副教授, slxu99@ustc.edu.cn

中图分类号: O347.3
计量
- 文章访问数: 7195
- HTML全文浏览量: 3095
- PDF下载量: 1189
- 被引次数: 0
出版历程
- 收稿日期: 2017-01-06
- 修回日期: 2017-01-19
- 刊出日期: 2017-03-25

Dynamic behavior of concrete under static triaxial loadingusing 3D-Hopkinson bar

1.
CAS Key Laboratory for Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, Anhui, China
2.
Department of Civil Engineering, Monash University, Victoria 3180, Melbourne, Austrilia

摘要

摘要: 混凝土、岩石类材料在复杂应力状态下的动态力学性能研究一直备受关注，但鉴于动态实验的复杂性，对真三轴应力状态下材料的动态加载一直未曾实现。本文中研制了一套真三轴静载作用下混凝土、岩石类材料的“三维Hopkinson杆”动态力学实验系统，为冲击载荷作用下材料动态各向异性特性的研究提供了一种有效的实验测试技术。该系统采用液压伺服控制对立方体试件施加三向独立的0~100 MPa真三轴静载，再利用分离式Hopkinson压杆对试件施加冲击动载，具体研究了C30混凝土材料在不同真三轴静载条件下的动态压缩性能，得到了不同条件下X、Y、Z方向上的动态应力应变关系。
- 动态力学性能 /
- 真三轴静态加载 /
- 混凝土 /
- 三维Hopkinson压杆
Abstract: A type of 3D-Hopkinson bar dynamic testing system for investigating the dynamic behavior of concrete and rock under static triaxial loading was developed. The hydraulic servo control system employed in the testing system could provide independent triaxial pressure up to 100 MPa, and the split Hopkinson pressure bar employed in the impacting direction could provide dynamic loads. The dynamic responses on six faces of the cube specimen can be recorded by six bars in three dimensions, the lateral deformation states of the specimen under dynamic loading were obtained and analyzed by using this novelty Hopkinson bar. The dynamic compressive behaviors of C30 concrete under different static triaxial loading were investigated.
- dynamic behavior /
- static triaxial loading /
- concrete /
- 3D-Hopkinson pressure bar

HTML全文

图 1 三维Hopkinson杆动态实验设备

Figure 1. 3D-Hopkinson bar dynamic testing system

下载: 全尺寸图片幻灯片

图 2 在静载[15 MPa, 6 MPa, 10 MPa]、冲击速度13.2m/s下6根杆上的典型信号

Figure 2. Recorded wave profiles in six bars under [15 MPa, 6 MPa, 10 MPa] triaxial static load and impact velocity 13.2 m/s

下载: 全尺寸图片幻灯片

图 3 不同静载、冲击速度19 m/s下X轴的入射波波形

Figure 3. Incident waveform of X-axis under different static loads and impact velocity 19 m/s

下载: 全尺寸图片幻灯片

图 4 试件在X、Z双轴静载[30 MPa, 0, 30 MPa]下的动态应力应变曲线

Figure 4. Dynamical stress-strain curves of the specimen under X, Z biaxial static load [30 MPa, 0, 30 MPa]

下载: 全尺寸图片幻灯片

图 5 试件在三轴静载[60 MPa, 60 MPa, 60 MPa]、单轴冲击(21.8 m/s)下的动态应力应变曲线

Figure 5. Dynamical stress-strain curves of the specimen under triaxial static load [60 MPa, 60 MPa, 60 MPa] at the impact velocity of 21.8 m/s

下载: 全尺寸图片幻灯片

图 6 `不同实验条件下混凝土试样破坏形态

Figure 6. Failure patterns of concrete specimens under different lateral confinement conditions

下载: 全尺寸图片幻灯片

参考文献(14)

[1]	席道瑛, 徐松林.岩石物理与本构理论[M].合肥:中国科学技术大学出版社, 2016:60-101.
[2]	胡时胜, 王道荣, 刘剑飞.混凝土材料动态力学性能的实验研究[J].工程力学, 2001, 18(5):115-118. doi: 10.3969/j.issn.1000-4750.2001.05.015 Hu Shisheng, Wang Daorong, Liu Jianfei. Responses of continuously reinforced concrete pavement under transient load[J]. Engineering Mechanics, 2001, 18(5):115-118. doi: 10.3969/j.issn.1000-4750.2001.05.015
[3]	胡时胜, 王礼立, 宋力, 等.Hopkinson压杆技术在中国的发展回顾[J].爆炸与冲击, 2014, 34(6):641-657. http://www.bzycj.cn/CN/abstract/abstract9373.shtml Hu Shisheng, Wang Lili, Song Li, et al. Review of the development of Hopkinson bar technique in China[J]. Explosion and Shock Waves, 2014, 34(6):641-657. http://www.bzycj.cn/CN/abstract/abstract9373.shtml
[4]	王礼立, 胡时胜, 杨黎明, 等.材料动力学[M].合肥:中国科学技术大学出版社, 2016:179-209.
[5]	李海波, 赵坚, 李俊如, 等.三轴情况下花岗岩动态力学特性的实验研究[J].爆炸与冲击2004, 24(5):470-474. doi: 10.3321/j.issn:1001-1455.2004.05.016 Li Haibo, Zhao Jian, Li Junru, et al. Triaxial compression tests of a granite[J]. Explosion and Shock Waves, 2004, 24(5):470-474. doi: 10.3321/j.issn:1001-1455.2004.05.016
[6]	李夕兵; 周子龙; 邓义芳, 等.动静组合加载岩石力学实验方法与装置: 中国, CN200510032031.6[P].2006-02-08.
[7]	张磊, 徐可立, 刘瑞朝, 等.一种霍普金森压杆主动围压实验的围压缸装置: 中国, CN202837089U[P].2013-03-27.
[8]	Cadoni E, Albertini C. Modified Hopkinson bar technologies applied to the high strain rate rock tests[C]//Zhou Y X, Zhao J. Advances in Rock Dynamics and Application. Hoboken: CRC Press, 2011: 79-104.
[9]	Cadoni E. Mechanical characterization of rock materials at high strain-rate[C]//Li Jianchun, Zhao Jian. Rock Dynamics and Applications: States of Art. Hoboken: CRC Press, 2013: 137-148.
[10]	Zhang Q B, Zhao J. A review of dynamic experimental techniques and mechanical behavior of rock material[J]. Rock Mechanics and Rock Engineering, 2014, 47(4):1411-1478. doi: 10.1007/s00603-013-0463-y
[11]	Zhao J, Wu W, Zhang Q, et al. Some recent developments on rock dynamic experiments and modeling[C]//Li Jianchun, Zhao Jian. Rock Dynamics and Applications: States of Art. Hoboken: CRC Press, 2013: 25-40.
[12]	徐松林, 赵坚, 宋晓勇, 等.一种基于真三轴静载的岩石霍普金森冲击加载装置: 中国, CN: 201620574575.9[P]. 2016-06-15.
[13]	徐松林, 吴文, 张华.大理岩三轴压缩动态卸围压与岩爆模拟分析[J].辽宁工程技术大学学报, 2002, 21(5):612-615. doi: 10.3969/j.issn.1008-0562.2002.05.021 Xu Songlin, Wu Wen, Zhang Hua. Experimental study on dynamic unloading of the confining pressures for a marble under triaxial compression and simulation analyses of rock burst[J]. Journal of Liaoning Technical University, 2002, 21(5):612-615. doi: 10.3969/j.issn.1008-0562.2002.05.021
[14]	徐松林, 吴文, 王广印, 等.大理岩等围压三轴压缩全过程研究Ⅱ:剪切断裂能分析[J].岩石力学与工程学报, 2002, 21(1):65-69. http://d.old.wanfangdata.com.cn/Periodical/yslxygcxb200106002 Xu Songlin, Wu Wen, Wang Guangyin, et al, Study on complete procedures of a marble under triaxial compression Ⅱ: Analysis of shear fracture energy[J]. Chinese Journal of Rock Mechanics and Engineering, 2002, 21(1):65-69. http://d.old.wanfangdata.com.cn/Periodical/yslxygcxb200106002