Guoliang Zhai1, Guowei Zhai2
1School of Architectural Engineering, Zhengzhou University of Industry Technology, Zhengzhou, China
2School of Economics and Management, Shenyang Agricultural University, Shenyang, China
In this test, a 74mm diameter split type get-a-purkinson test device was used to impact the specimen. The relationship between the peak stress and the number of impacts, the air pressure and the thickness of FRP tube was studied by using the control variable method.The test results show that:Under the same air pressure, the elastic modulus of the specimen increases first and then decreases, and the peak stress decreases after the first impact, and then stays stable.The peak value of stress increases with the increase of air pressure. The increase of air pressure has a linear relationship with the peak value of stress.With the increase of FRP pipe thickness, the stress peak value will change greatly, and the stress peak value will increase more and more quickly with the increase of FRP pipe thickness.
SHPB test system, Strain. Peak stress, FRP tube thickness, Pressure
Guoliang Zhai, Guowei Zhai. Study on the Lateral Impact Behavior of FRP-concrete-steel Tube Composite Structure. International Journal of Frontiers in Engineering Technology (2021), Vol. 3, Issue 7: 12-20. https://doi.org/10.25236/IJFET.2021.030703.
 Teng Jinguang. New material composite structure [J]. Journal of civil engineering, 2018,51 (12): 1-11.
 Liang Lei, Gu qiangkang, Yuan Lu. Experimental study on multiple impact of AFRP confined concrete [J]. Vibration and impact, 2013,32 (05): 90-95.
 Mingxue Liu,Jiaru Qian. Moment-curvature relationship of FRP-concrete-steel double-skin tubular members[J]. Frontiers of Architecture and Civil Engineering in China,2009,3(1).32(5): 76-81.
 Zou Miao, Wang Rui. Theoretical analysis model of anti-collision performance of FRP pipe concrete steel tube composite beam under lateral impact load [J]. Vibration and impact, 2017,36 (06): 246-252.
 Huo Jingsi, Liu Jintong, Zhao Lingyu, Xiao Yan. Experimental study on shear failure mechanism of CFRP strengthened beams without web reinforcement under impact load [J]. Vibration and impact, 2017,36 (15): 187-193.
 Huo LiuYe, Wang Rui, Li Zhigang. Dynamic response of CFRP concrete steel tube composite structure under low speed lateral impact [J]. Explosion and impact, 2018,38 (04): 759-767.
 Lu Fangyun, Chen Rong, Lin Yuliang, et al. Hopkinson pressure bar test technology [M]. Beijing: Science Press, 2013.
 Malinowski JZ, Klepaczko JR. Dynamic frictional effects as measured from the split Hopkinson pressure bar. Highvelocity deformation of solids. Berlin: Spring, 1978, 403-16.
 Malinowski JZ, Klepaczko JR. A unified analytic and numerical approach to specimen behaviour in the splitHopkinson pressure bar. Int J Mech Sci 1986, Vo1.28:381-91.
 Li Chengjie, Xu Ying, Zhang Yuting, Li Hailong. Study on energy evolution and fractal characteristics of fractured coal rock assemblages under impact load [J]. Journal of rock mechanics and engineering, 2019,38 (11): 2231-2241.
 Wang Mengmeng, Wang Haibo, Zong Qi. Experimental study on energy dissipation of coal mine mudstone under impact load [J]. Journal of coal, 2019,44 (06): 1716-1725.
 Zhang pengpeng, Gong Nengping, Zhou Jian. Numerical simulation of coal rock material SHPB active confining pressure experiment [J]. Coal technology, 2018,37 (05): 76-78.
 Xia Kaiwen, Wang Shuai, Xu Ying, Chen Rong, Wu bangbiao. Experimental research progress of deep rock dynamics [J / OL]. Journal of rock mechanics and Engineering: 1-28 [2020-12-06] https://doi.org/10.13722/j.cnki.jrme.2020.0343.
 Gao Changhui, Ma QinYong, Ma Dongdong. SHPB test and analysis of cement silty clay under active confining pressure [J]. Vibration and impact, 2018,37 (14): 162-167.
 Fu Jie. Experimental study on dynamic compressive mechanical properties of shale under confining pressure [D]. Southwest University of science and technology, 2020.
 Gao Qiang, Wang Haibo, LV Nao, Zong Qi. Experimental study on mechanical properties of hard coal under different impact velocities [J]. China Science and technology of work safety, 2019,15 (01): 69-74.
 Zhang Shoumin, Wang Haibo, Zong Qi, Wang Mengmeng. Experimental study on dynamic tensile failure characteristics of glass fiber mortar pipe specimens [J]. China Science and technology of work safety, 2020,16 (05): 89-94.