Propagation of shock waves in protective structures with holes under contact explosive loads

Fan Jin; Xu Da-li; Ren Xin-jian

doi:10.11883/1001-1455(2014)06-0658-09

Volume 34 Issue 6

Dec. 2014

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2014 > 34(6): 658-666

Fan Jin, Xu Da-li, Ren Xin-jian. Propagation of shock waves in protective structures with holes under contact explosive loads[J]. Explosion And Shock Waves, 2014, 34(6): 658-666. doi: 10.11883/1001-1455(2014)06-0658-09

Citation:

Fan Jin, Xu Da-li, Ren Xin-jian. Propagation of shock waves in protective structures with holes under contact explosive loads[J]. Explosion And Shock Waves, 2014, 34(6): 658-666. doi: 10.11883/1001-1455(2014)06-0658-09

Citation:

PDF( 3148 KB)

Propagation of shock waves in protective structures with holes under contact explosive loads

doi: 10.11883/1001-1455(2014)06-0658-09

Fan Jin^{1
,
,},
Xu Da-li¹,
Ren Xin-jian²

1.
Department of Civil Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
2.
The Third Research Institute of Corps of Engineering, General Staff of PLA, Luoyang 471023, Henan, China

More Information

Corresponding author: Fan Jin, fanjinem@njust.edu.cn
Received Date: 2013-04-01
Rev Recd Date: 2013-07-17
Publish Date: 2014-11-25

Abstract

Abstract

The finite element code, AUTODYN, was used to numerically simulate the propagation of the shock wave in the protective structure with holes under contact explosive loads.The overpressuretime curves were obtained for the shock waves around the orifice and in the center of the protective structure, respectively.The effects of the explosive charge weight and the blast center distance on the overpressure and impulse in the protective structures were analyzed.And based on the numerical calculation, the prediction formulas for the characteristic parameters were achieved by applying the dimensional analysis method.
- mechanics of explosion,
- overpressure,
- shock wave,
- protective structure,
- contact explosion,
- impulse

FullText(HTML)

References(14)

References

[1]	Henrych J.爆炸动力学及其应用[M].熊建国, 译.北京: 科学出版社, 1994: 74-77.
[2]	叶序双.爆炸作用理论基础[M].南京: 解放军理工大学, 2001: 64-66.
[3]	Twisdale L A, Sues R H, Lavelle F M. Reliability-based analysis and design methods for reinforced concrete protective structures[M]. Tyndall Air Force Base: Air Force Civil Engineering Support Agency, 1993: 195-199.
[4]	Welch C R. In-tunnel airblast engineering model for internal and external detonations[C]//Proceedings of the 8th International Symposium on Interaction of the Effects of Munitions with Structures, 1997: 195-208.
[5]	Anet B, Binggeli E D. The use of the LS 2000-design charts for predictions of air blast loading in tunnels due to HE-detonations at the tunnel entrance[C]//Proceedings of the 9th International Symposium on Interaction of the Effects of Munitions with Structures. 1999: 225-234.
[6]	庞伟宾, 何翔, 李茂生, 等.空气冲击波在坑道内走时规律的实验研究[J].爆炸与冲击, 2003, 23(6): 573-576. Pang Wei-bin, He Xiang, Li Mao-sheng, et al. The formula for airblast time of arrival in tunnel[J]. Explosion and Shock Waves, 2003, 23(6): 573-576.
[7]	黄广炎, 冯顺山, 王云峰.装药约束对腔室爆炸冲击波传播特性影响的数值分析[J].系统仿真学报, 2009, 21(1): 58-61. Huang Guang-yan, Feng Shun-shan, Wang Yun-feng. Numerical analysis for influence of restriction of charges on shock wave propagation inside cavity[J]. Journal of System Simulation, 2009, 21(1): 58-61.
[8]	刘瑞朝, 任新见.常规武器袭击下目标毁伤判据研究进展[J].防护工程, 2012, 37(5): 60-66. Liu Rui-chao, Ren Xin-jian. Research progress of the damage criterion by conventional weapon[J]. Protective Engineering, 2012, 37(5): 60-66.
[9]	任新见, 张庆明, 薛一江, 等.坑道口部B炸药爆炸冲击波传播速度模型试验研究[J].振动与冲击, 2012, 31(7): 71-73. Ren Xin-jian, Zhang Qing-ming, Xu Yi-jiang, et al. Scale model tests to determine in-tunnel blast impact wave velocity for B-charges at tunnel entrance[J]. Journal of Vibration and Shock, 2012, 31(7): 71-73.
[10]	Welch C R. In-tunnel airblast engineering model for internal and external detonations[C]//Proceedings of the 8th International Symposium on Interaction of the Effects of Munitions with Structures. 1997: 195-208.
[11]	Century Dynamics Inc. Autodyn theory manual[M]. Concord, CA: Century Dynamics Inc, 2006: 133-141.
[12]	Riedel W, Thoma K, Hiermaier S, et al. Penetration of reinforced concrete by BETA-B-500numerical analysis using a new macroscopic concrete model for hydrocodes[C]//Proceedings of the 9th International Symposium on Interaction of the Effects of Munitions with Structures. 1999: 315-322.
[13]	Johnson G R, Cook W H. A constitutive model and data for metals subjected to large stains, high stain rates and high temperatures[C]//Proceedings of the 7th International Symposium on Ballistics, 1983: 541-547.
[14]	谈庆明.量纲分析[M].合肥: 中国科学技术大学出版社, 2005: 120-123.