混凝土恒定围压下冲击加载实验装置研制

摘要
图/表
参考文献(18)
相关文章 (15)

全文: PDF (1418 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要研制了一种可实现混凝土、岩石和土等非均匀材料恒定围压下轴向冲击压缩加载的实验装置，用以研究复杂应力状态下高应变率力学性能。该装置通过围压油缸和轴向油缸对试件施加静水压，利用大直径分离式Hopkinson压杆（SHPB）进行轴向冲击加载，测量了恒定围压下材料动态应力-应变曲线。该装置主要具有如下优点：（1）冲击加载前试件处于静水压状态；（2）轴向冲击加载过程中试件围压保持恒定不变。实验结果表明，围压对混凝土材料动态力学性能有明显影响。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	张磊何翔王晓峰孔德锋

关键词 ： Hopkinson压杆, 围压, 冲击, 动态力学性能, 混凝土

Abstract：For detecting the high strain rate mechanical properties of concrete, rock, soil and other non-uniform materials under complete stress state, the experiment device to perform axial impact loading with constant confining pressure are exhibited in the study. The hydrostatic pressure state of specimen was obtained through the confining and axial oil cylinder. The axial impact loading to specimen was achieved by large diameter split Hopkinson bar (SHPB) and the dynamic stress-strain curves under constant confining pressure were presented. The advantages of the device are：(1) The specimen is under hydrostatic pressure state before the axial impact loading; (2) The confining pressure of specimen was constant during the axial impact loading process. The experiment results denote that the confining pressure has an obvious effect on the dynamic mechanical performance of concrete.

Key words： Hopkinson pressure bar confine pressure impact dynamic mechanical properties concrete

收稿日期: 2014-06-12 出版日期: 2015-11-25

引用本文:

张磊何翔王晓峰孔德锋. 混凝土恒定围压下冲击加载实验装置研制[J]. 振动与冲击, 2015, 34(22): 24-27.
ZHANG Lei HE Xiang WANG Xiao-Feng KONG De-feng.

Development of the Impact Loading Test Device for Concrete under Constant confine pressure

. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(22): 24-27.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2015/V34/I22/24

[1] Chen W F, Saleeb A F. Constitutive equations for engineering materials, Elasticity and Modeling. Vol.1 [M]. New Jersey: John Wiley & Sons Inc. 1982.
[2] Malvern L E, Jenkins D A, Tang T X, et al. Dynamic compressive testing of concrete [C] // C A Ross and P Y Thompson. Proceedings of 2nd Symposium on the Interaction of Non-nuclear Munitions with Structures. Florida: US Department of Defense.1985. 194-199.
[3] 梁磊，顾强康，原璐.AFRP约束混凝土多次冲击试验研究[J].振动与冲击,2013,32(5):90-95.
LIANG Lei, GU Qiang-kang, YUAN Lu. Experimental research on AFRP confined concrete under repeated impact [J].Journal of Vibration and Shock,2013,32(5):90-95.
[4] Mansur M A, Chin M. S., Wee T. H. Stress-strain Relationship of High-strength Fiber Concrete in Compression [J]. Journal of Materials, 1999, 11(1): 21-29.
[5] 武建华, 于海洋, 李强等. 定围压比作用下混凝土轴向受压性能试验研究[J]. 实验力学,2007, 22（2）：142-148.
WU Jian-hua,YU Hai-xiang,LI Qiang, et al.Experimental Study on Axial Property for Concrete with Constant Surrounding Pressure Ratio [J].Journal of experimental mechnaic, 2007, 22（2）：142-148.
[6] Yu Mao-hong. Advances in strength theories for materials under complex stress state in the 20th century [J]. Appl. Mech., 2002, 55(3):169-218.
[7] Gong J C, Malvern L E. Passively Confined Tests of Axial Dynamical Compressive Strength of Concrete [J]. Experimental Mechanics, 1990, 30(3):55-59.
[8] Albertini C, Cadoni E, Labibes K. Study of the mechanical properties of plain concrete under dynamic loading [J]. Experimental Mechanics, 1999, 39(2): 137-141.
[9] Christensen R J, Swanson S R, Brown W S. Split-Hopkinson-bar tests on rock under confining pressure [J]. Experimental Mechanics, 1972, 12(11): 508-513.
[10] 吕晓聪，许金余，葛洪海.围压对砂岩动态冲击力学性能的影响[J].岩石力学与工程学报, 2010, 29(1):193-201.
LV Xiao-chong, XU Jin-yu, Ge Hong-hai. Effects of confining pressure on mechanical behaviors of sandstone under dynamic impact loads [J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(1):193-201.
[11] 薛志刚，胡时胜．水泥砂浆在围压下的动态力学性能[J]．工程力学，2008，25(12)：184—188．
XUE Zhi-gang，HU Shi-sheng．Dynamic behavior of cement mortar under confining pressure [J]．Engineering Mechanics，2008，25(12)：184—188．
[12] Schmidt M J. High pressure and high strain rate behavior of cementations materials experiments and elastic/visco-plastic modeling [D]. Florida: University of Florida, 2003.
[13] Ross C A and Schmidt M J. The interaction of kinetic energy penetration with geomaterials and concrete [R]. AFRL-SR-BL-TR-99-0033. Florida: University of Florida, 1999.
[14] 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[P]. 中国 200510032031. 2006.
Li Xi-bing, Zhou Zi-long, Deng Ying-fang, et al. Testing technique and apparatus of rock subjected to coupled static and dynamic loads [P].China, 200510032031. 2006.
[15] Malvern L E, Jenkins D A. Dynamic testing of laterally confined concrete [R]. AD-A242 317. Florida: Engineering Research Division, 1989.
[16] Gerard G, Bailly P. Behavior of quasi-brittle material at high strain rate, experiment and modeling [J]. Eur. J. Mech. A/ Solids, 1998, 17(3): 403-420.
[17] 王佳，傅连东，袁昌耀等。蓄能器在AGC液压系统中吸收液压冲击的研究[J]. 液压与气动. 2009年第6期，17:19. WANG Jia，FU Lian-dong, YUAN Chang-yao, et al. Research on Hydraulic Accumulator Absorbing Pressure Pulsation in the AGC Hydraulic System [J]. Chinese Hydraulics and Pneumatics.
[18] Chen W, Lu F. A Technique for Dynamic Proportional Multiaxial Compression on Soft Materials [J]. Experimental Mechanics, 2000, 40(2):226-230.