ECC冲击压缩力学特性及耗能机制的试验研究

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摘要基于分离式霍普金森压杆(split Hopkinson pressure bar, SHPB)装置对工程水泥基复合材料（Engineered cementitious composite，以下简称ECC）在14.8~16.3 s-1、31.8~36.5 s-1、57.8~65.5 s-1、167.3~200.2 s-1四个应变率范围下进行冲击压缩试验，探究ECC在不同应变率下的动态力学特性及耗能机制。试验表明，ECC的动态抗压强度和动态峰值应变呈现出显著的应变率增强效应，在低应变率下纤维掺量对ECC动态抗压强度和峰值应变的增加作用较强，在高应变率增强作用不明显；纤维掺量对ECC在不同应变率的应力应变曲线具有类似的影响，在低应变率下纤维掺量的对ECC应力应变曲线形态的影响大于高应变率；ECC的耗能能力与破坏形态有关，在能耗比达到90%以上时，纤维掺量为2.0%和2.3%的ECC的完整度是基体材料的4倍，充分体现了ECC在抗爆加固领域的优势，为ECC在抗爆抗冲击领域的应用提供技术参考。

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	罗银剑
	李秀地
	蔡涛
	杨谨鸿

关键词 ：工程水泥基复合材料（ECC）, 冲击压缩, 耗能, 分离式霍普金森压杆(SHPB), 破坏形态

Abstract：Based on the isolated SHPB device, the engineered cementitious composite were tested for impact compression in the range of 4 strain rates from 14.8 to 16.3 s-1,31.8 to 36.5 s-1,57.8 to 65.5 s-1,167.3 to 200.2 s-1 to explore the dynamic mechanical characteristics and energy consumption mechanism of ECC at different strain rates.The test showed that The dynamic compressive strength and the dynamic peak strain of the ECC showed a significant strain rate enhancement effect, The increase of the dynamic compressive strength and peak strain of ECC at low strain rate, The effect of the enhancement at the high strain rate is not obvious; Fiber incorporation had similar effects on the stress strain curves of the ECC at different strain rates, The effect of fiber incorporation at the low strain rate on the ECC stress strain curve morphology was greater than on the high strain rate; The energy consumption capacity of the ECC is associated with the destructive morphology, When the energy consumption ratio exceeds 90%, The ECC with a fiber incorporation of 2.0% and 2.3% was 4 times more complete than that of the matrix material, It fully reflects the advantages of ECC in the field of anti-explosion reinforcement, It provides technical reference for ECC in the field of explosion resistance and impact resistance.

Key words： engineered cementitious composite（ECC） impact compression energy consumption split Hopkinson pressure bar (SHPB);destructive form

收稿日期: 2021-12-06 出版日期: 2023-02-28

引用本文:

罗银剑，李秀地，蔡涛，杨谨鸿. ECC冲击压缩力学特性及耗能机制的试验研究[J]. 振动与冲击, 2023, 42(4): 19-27.
LUO Yinjian，LI Xiudi，CAI Tao，YANG Jinhong. An experimental study on the mechanical properties of shock compression and energy consumption mechanism of ECC. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(4): 19-27.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2023/V42/I4/19

[1] 李秀地,孙建虎,王起帆,等.高等防护工程[M]. 北京：国防工业出版社,2016.
[2] LI V C, LEUNG C K Y.Steady-state and multiple cracking of short random fiber composites [J].Journal of Engineering Mechanics,1992, 118(11):2246-2252.
[3] LI V C,STANG H,KRENCHEL H. Micromechanics of crack bridging in fiber-reinforced concrete [J].Materials&Structures, 1993,26(8):486.
[4] 陈智韬.PVA纤维增强水泥基复合材料强韧化及动力学特性研究[D].哈尔滨：哈尔滨工业大学，2013.
CHEN Zhitao. Study on the toughness and kinetic properties of PVA fiber-reinforced cement-based composite materials [D]. Harbin: Harbin Institute of Technology, 2013.
[5] CHEN Z t, YANG Y Z, YAO Y.Impact properties of engineered cementitious composites with High Volume Fly Ash Using SHPB Test[J]. Journal of Wuhan University of Technology(Materials Science Edition), 2012, 27(03):590-596.
[6] 张华，郜余伟，李飞，等.高应变率下聚丙烯纤维混凝土动态力学性能和本构模型[J].中南大学学报（自然科学版），2013，44（8）：3464-3473.
ZHANG Hua, GAO Yuwei, LI Fei, et al. Experimental study on dynamic properties and constitutive model of polypropylene fiber concrete under high strain rate [J]. Journal of Central South   University (Natural Science Edition), 2013,44 (8): 3464-3473.
[7] 杜修力,窦国钦,李亮,等.纤维高强混凝土的动态力学性能试验研究[J].工程力学，2011，28（4）：138-144.
DU Xiuli, DOU Guoqin, LI Liang, et al. Exeperimental study on dynamic mechanical properties of fiber reinforced high strength concrete [J]. Engineering mechanics, 2011,28 (4): 138-144.
[8] ZHANG Y X, KERR Z, JARVIS B.High-velocity impact behaviour of a new hybrid fibre-reinforced cementitious composite [J].Advances in Structural Engineering ,2018, 21(4) 589-597.
[9] YILDIRIM G, KHIAVI F E,ÖZGÜR A,et al. Performance of engineered cementitious composites under drop‐weight impact: Effect of different mixture parameters[J]. Structural Concrete,2020,21(3)：1464-4177.
[10] 李俊,孙明清,王应军,等.PVA纤维表面覆油量对SHCC拉伸性能的影响[J].华中科技大学学报(自然科学版),2015,43(10):128-132.
LI Jun, SUN Mingqing, WANG Yingjun, et al. Influence of oiling agent quantity coated on PVA fiber on tensile properties of SHCC [J]. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2015,43 (10): 128-132.
[11] 杨惠贤.纤维增强水泥基复合材料的动态力学性能及动态本构模型研究[D].广州:华南理工大学,2016.
YANG Huixian. Dynamic mechanical properties and dynamic constitutive model study of fiber-reinforced cement-based                         composites [D]. Guangzhou: South China University of     Technology, 2016.
[12] 杜超超,温森,孔庆梅.一维动静组合加载下复合岩样动态力学特性试验研究[J].振动与冲击,2021,40(21):168-178+206.
DU Chaochao, WEN Sen, KONG Qingmei. Tests for dynamic mechanical properties of composite rock samples under 1-D dynamic-static combined loading [J]. Journal of Vibration and Shock, 2021,40 (21): 168-178 + 206.
[13] 焦振华,穆朝民,王磊,等.被动围压下煤冲击压缩动态力学特性试验研究[J].振动与冲击,2021,40(21):185-193.
JIAO Zhenhua, MU omin, WANG Lei, et al. Tests for dynamic mechanical properties of coal impact compression under passive confining pressure [J]. Journal of Vibration and Shock, 2021,40 (21): 185-193.
[14] 陶俊林.SHPB系统试验技术研究[M].北京：2014.9.
[15] 陈艺顺,王波,周健南,等.冲击载荷作用下蒸压加气混凝土动态力学性能研究[J].振动与冲击,2019,38(18):201-206+255.
         CHEN ishun, WANG Bo, ZHOU Jiannan, et，al. Dynamic mechanical properties of AACs under impact loading [J]. Journal of Vibration and Shock,2019,38 (18): 201-206 + 255.
王   [16] 梦想,汪海波,宗琦.煤矿泥岩冲击动态力学特性与破裂破碎特       征分析[J].振动与冲击,2019,38(04):137-143.
WANG Dream, WANG Haibo, ZONG Qi. Analysis dynamic mechanical characteristics and fracture breaking characteristics of coal mine mudstone [J]. Journal of Vibration and Shock,2019,38 (04): 137-143.
[17] 解北京,王新艳,吕平洋.层理煤岩SHPB冲击破坏动态力学特性实验[J].振动与冲击,2017,36(21):117-124.
XIE Beijing, WANG Xinyan, LV Pingyang. Dynamic properties of bedding coal and rock and the SHPB testing for its impact damage [J]. Journal of Vibration and Shock, 2017,36 (21): 117-124.
[     [18]宁建国，任会兰.钢筋混凝土的动态本构关系[M].北京：北       京       理工大学出版社，2018.12.
    NING Jianguo, REN Huilan. Dynamic constitutive relationship of reinforced concrete [M]. Beijing: Beijing Polytechnic University Press, January 12,2018.
[19] Zhang Z X，Kou S Q，Jiang L G． Effects of loading rate on rock fracture: fracture characteristics and energy partitioning [J].International Journal of Rock Mechanics and Mining Sciences，2000，37( 5) : 745-762
[20] 刘运思,何楚韶,王世鸣,等.冲击荷载下层状板岩拉伸破坏及能耗规律研究[J].应用力学学报,2021,38(04):1373-1382.
LIU Yunsi, HE Chushao, WANG Shiming, et al. Study on tensile failure and energy consumption law of layered slate under impact loading [J]. Chinese Journal of Applied Mechanics, 2021,38 (04): 1373-1382.
[21] 刘晓辉,薛洋,周济芳,郝齐钧,等.层理煤岩动态破坏能量变化规律及损伤特征[J].地下空间与工程学报,2021,17(04):1052-1062.
    LIU Xiaohui, XUE Yang, ZHOU Qifang, Hao Qijun, et,al. Dynamic failure energy change and damage characteristics of bedding coal rock [J]. Chinese Journal of Underground Space and Engineering, 2021,17 (04): 1052-1062.
[22]Zhang Dan,Li Ning,Zhang Shuangcheng. Energy dissipation and resilience of precast segmented concrete-filled steel tube self-centering column: Parameter study and design methodology[J]. Engineering Structures,2021,244:
[23] 温森,赵现伟,常玉林,等.基于SHPB的复合岩样动态压缩破坏能量耗散分析[J].应用基础与工程科学学报,2021,29(02):483-492.
WEN Sen, ZHAO Xianwei, CHANG Yulin, et al. Energy dissipation of dynamic failure of mixed rock specimens subject to SHPB compression [J]. Journal of Basic Science and Engineering, 2021,29 (02): 483-492.