Blast loads on the inner wall of cylindrical explosion containment vessel

LIU Xin; GU Wenbin; CAI Xinghui; WANG Tao; LIU Jianqing; WANG Zhenxiong; SHEN Huiming

doi:10.11883/bzycj-2021-0209

Volume 42 Issue 2

Feb. 2022

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2022 > 42(2): 022201

LIU Xin, GU Wenbin, CAI Xinghui, WANG Tao, LIU Jianqing, WANG Zhenxiong, SHEN Huiming. Blast loads on the inner wall of cylindrical explosion containment vessel[J]. Explosion And Shock Waves, 2022, 42(2): 022201. doi: 10.11883/bzycj-2021-0209

Citation:

LIU Xin, GU Wenbin, CAI Xinghui, WANG Tao, LIU Jianqing, WANG Zhenxiong, SHEN Huiming. Blast loads on the inner wall of cylindrical explosion containment vessel[J]. Explosion And Shock Waves, 2022, 42(2): 022201. doi: 10.11883/bzycj-2021-0209

Citation:

PDF( 5720 KB)

Blast loads on the inner wall of cylindrical explosion containment vessel

doi: 10.11883/bzycj-2021-0209

1.
School of Nuclear Engineering, Rocket Army Engineering University, Xiʾan 710038, Shaanxi, China
2.
School of Field Engineering, Army Engineering University, Nanjing 210007, Jiangsu, China
3.
Institute of Chemical Defense, Academy of Military Sciences, Beijing 102205, China

Received Date: 2021-05-26
Accepted Date: 2022-01-18
Rev Recd Date: 2021-09-20

Available Online: 2022-02-11

Publish Date: 2022-02-28

Abstract

Abstract

The determination of the blast loads acting on the inner wall of explosion containment eessels (ECVs) is the basis for the study of the dynamic response characteristics, the design of structure and the safety assessment of ECVs. In order to obtain the characteristics and distribution law of the blast loads acting on the inner wall of cylindrical explosive containment vessels when the central charge is exploded, a series of implosion loading tests were carried out on the self-developed combined cylindrical explosion containment vessel, with the blast loads acting on several typical positions of the inner wall of the vessel being measured, while by using ANSYS/LS-DYNA software, a simplified model of 1/8 of the vessel is established to numerically simulate the whole process of formation and propagation of the internal detonation field of the vessel. Through the analysis of the test results, the characteristics of the blast loading on the inner wall of the vessel and its distribution law are obtained, and the empirical calculation formulas for the peak pressure, positive pressure action time and specific impulse of the first pulse of blast loads acting on the inner wall of the cylindrical shell part of the vessel, and the empirical calculation formulas for the quasi-static pressure inside the vessel are fitted. By analyzing the numerical simulation results, the formation mechanism of the characteristics and distribution law of the blast loads on the inner wall of the vessel are clarified. The research results show that the Mach reflection waves generated from the inner wall of the ellipsoid end cap converge at the end cap pole, so that the peak pressure and the peak specific impulse of single pulse of the blast loading on the pole are always the biggest among all the measurement points, and the maximum peak pressure of the load can reach 2.79 times the maximum peak pressure that acting on the cylindrical shell, which should be paid a close attention.
- cylindrical explosion containment vessels,
- blast loading on the inner wall,
- peak pressure,
- specific impulse

FullText(HTML)

References(12)

References

[1]	庞崇安, 王震. 立式柱形钢储罐内部爆炸数值模拟及动力响应分析 [J]. 爆破, 2015, 32(2): 54–58. DOI: 10.3963/j.issn.1001-487X.2015.02.010. PANG C A, WANG Z. Numerical simulation of internal explosion and dynamic response analysis for vertical cylindrical steel tanks [J]. Blasting, 2015, 32(2): 54–58. DOI: 10.3963/j.issn.1001-487X.2015.02.010.
[2]	宁鹏飞, 唐德高. 起爆位置偏差对结构内爆炸荷载的影响分析 [J]. 浙江大学学报(工学版), 2012, 46(12): 2252–2258. DOI: 10.3785/j.issn.1008-973X.2012.12.017. NING P F, TANG D G. Influence analysis of ignition location departure on blast load of close range internal blast [J]. Journal of Zhejiang University (Engineering Science), 2012, 46(12): 2252–2258. DOI: 10.3785/j.issn.1008-973X.2012.12.017.
[3]	叶序双. 爆炸力学基础 [M]. 南京: 解放军理工大学, 2004.
[4]	张德志, 李焰, 钟方平, 等. 球形装药近距离爆炸正反射冲击波实验研究 [J]. 兵工学报, 2009, 30(12): 1663–1667. DOI: 10.3321/j.issn:1000-1093.2009.12.018. ZHANG D Z, LI Y, ZHONG F P, et al. Experiment investigations on normal reflected blast wave near the spherical explosive [J]. Acta Armamentarii, 2009, 30(12): 1663–1667. DOI: 10.3321/j.issn:1000-1093.2009.12.018.
[5]	刘文祥, 张德志, 钟方平, 等. 球形爆炸容器内炸药爆炸形成的准静态气体压力 [J]. 爆炸与冲击, 2018, 38(5): 1045–1050. DOI: 10.11883/bzycj-2017-0056. LIU W X, ZHANG D Z, ZHONG F P, et al. Quasi-static gas pressure generated by explosive charge blasting in a spherical explosion containment vessel [J]. Explosion and Shock Waves., 2018, 38(5): 1045–1050. DOI: 10.11883/bzycj-2017-0056.
[6]	赵士达. 爆炸容器 [J]. 爆炸与冲击, 1989, 9(1): 85–96. ZHAO S D. Blast chamber [J]. Explosion and Shock Waves, 1989, 9(1): 85–96.
[7]	DONG Q, LI Q M, ZHENG J Y. Interactive mechanisms between the internal blast loading and the dynamic elastic response of spherical containment vessels [J]. International Journal of Impact Engineering, 2010, 37(4): 349–358. DOI: 10.1016/j.ijimpeng.2009.10.004.
[8]	霍宏发, 黄协清, 陈花玲, 等. 椭球封头圆柱形爆炸容器振动特性研究 [J]. 机械科学与技术, 2000, 19(6): 967–969. DOI: 10.3321/j.issn:1003-8728.2000.06.040. HUO H F, HUANG X Q, CHEN H L, et al. Experimental study on vibration characteristic of explosion vessel with cylindrical shells and ellipsoidal closures [J]. Mechanical Science and Technology, 2000, 19(6): 967–969. DOI: 10.3321/j.issn:1003-8728.2000.06.040.
[9]	饶国宁, 陈网桦, 王立峰, 等. 内部爆炸载荷作用下容器动力响应的数值模拟 [J]. 中国安全科学学报, 2007, 17(2): 129–133. DOI: 10.3969/j.issn.1003-3033.2007.02.023. RAO G N, CHEN W H, WANG L F, et al. Numerical simulation of dynamic response of vessels subjected to internal load of blast [J]. China Safety Science Journal, 2007, 17(2): 129–133. DOI: 10.3969/j.issn.1003-3033.2007.02.023.
[10]	张亚军, 张梦萍, 徐胜利, 等. 爆炸容器内冲击波系演化及壳体响应的数值研究 [J]. 爆炸与冲击, 2003, 23(4): 331–336. ZHANG Y J, ZHANG M P, XU S L, et al. Numerical investigation on blast wave propagation and dynamic response of an explosion vessel [J]. Explosion and shock waves, 2003, 23(4): 331–336.
[11]	DUFFEY T A, RODRIGUEZ E A, ROMERO C. Detonation-induced dynamic pressure loading in containment vessels: LA-UR-02-0366 [R]. Los Alamos, USA: Los Alamos National Laboratory, 2002.
[12]	林俊德. 10 kg TNT爆炸罐物理设计总结 [R]. 西安: 西北核技术研究所, 1997.