Numerical simulations on effects of Al/O ratio on performance of aluminized explosives

Zhou Zheng-qing; Nie Jian-xin; Qin Jian-feng; Pei Hong-bo; Guo Xue-yong

doi:10.11883/1001-1455(2015)04-0513-07

Volume 35 Issue 4

Jun. 2016

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2015 > 35(4): 513-519

Zhou Zheng-qing, Nie Jian-xin, Qin Jian-feng, Pei Hong-bo, Guo Xue-yong. Numerical simulations on effects of Al/O ratio on performance of aluminized explosives[J]. Explosion And Shock Waves, 2015, 35(4): 513-519. doi: 10.11883/1001-1455(2015)04-0513-07

Citation:

Zhou Zheng-qing, Nie Jian-xin, Qin Jian-feng, Pei Hong-bo, Guo Xue-yong. Numerical simulations on effects of Al/O ratio on performance of aluminized explosives[J]. Explosion And Shock Waves, 2015, 35(4): 513-519. doi: 10.11883/1001-1455(2015)04-0513-07

Citation:

PDF( 3368 KB)

Numerical simulations on effects of Al/O ratio on performance of aluminized explosives

doi: 10.11883/1001-1455(2015)04-0513-07

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

Received Date: 2014-01-02
Rev Recd Date: 2014-04-22
Publish Date: 2015-07-25

Abstract

Abstract

Aluminum to oxygen Al/O ratio is very important to the performance of aluminized explosives. In order to study the influence of the ratio on the performance of explosives in concrete, three kinds of aluminized explosives are taken into account, and their Al/O ratio are 0, 0.257 and 0.632, respectively. In this paper, the damaging process of concrete medium under explosion of cylindrical charge is numerically simulated using AUTODYN program. Meanwhile, within the range of relative distance from 2.5 to 10, shock wave pressure-time curve are obtained by means of numerical simulation and experiment. The numerical study shows that shock wave attenuation exponents are 2.10, 1.71 and 1.60, the exponents decrease with the increasing of Al/O ratio. In addition, shock wave energy is maximum when the Al/O ratio equals 0.257.
- mechanics of explosion,
- Al/O ratio,
- attenuation exponent,
- concrete,
- shock wave energy

FullText(HTML)

References(14)

References

[1]	Strømsøe E, Eriksen E W. Performance of high explosives in underwater applications. Part 2: Aluminized explosives[J]. Propellants, Explosives, Pyrotechnics, 1990, 15(2): 52-53. doi: 10.1002/prep.19900150204
[2]	黄菊, 王伯良, 仲倩, 等.温压炸药能量输出结构的初步研究[J].爆炸与冲击, 2012, 32(2): 164-168. doi: 10.11883/1001-1455(2012)02-0164-05 Huang Ju, Wang Bo-liang, Zhong Qian, et al. A preliminary investigation on energy output structure of a thermobaric explosive[J]. Explosion and Shock Waves, 2012, 32(2): 164-168. doi: 10.11883/1001-1455(2012)02-0164-05
[3]	周霖, 杨启先.铝氧比对含铝炸药水中爆炸冲击波的影响[J].兵工学报, 2008, 29(8): 916-919. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=bgxb200808005 Zhou Lin, Yang Qi-xian. The effect of Al/O ratio on underwater explosion shock wave of aluminium-containing explosives[J]. Acta Armamentarii, 2008, 29(8): 916-919. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=bgxb200808005
[4]	李金河, 赵继波, 谭多望, 等.炸药水中爆炸的冲击波性能[J].爆炸与冲击, 2009, 29(2): 172-176. doi: 10.11883/1001-1455(2009)02-0172-05 Li Jin-he, Zhao Ji-bo, Tan Duo-wang, et al. Underwater shock wave performances of explosives[J]. Explosion and Shock Waves, 2009, 29(2): 172-176. doi: 10.11883/1001-1455(2009)02-0172-05
[5]	Wang Q T, Ding J, Ying M K, et al. A study on damage properties of explosive internal-blast of concrete[J]. Advanced Materials Research, 2012, 598: 420-424. doi: 10.4028/www.scientific.net/AMR.598.420
[6]	李小雷, 聂建新, 覃剑锋, 等.含铝炸药在混凝土中爆炸效应的数值模拟研究[J].爆破, 2012, 29(3): 109-114. http://d.wanfangdata.com.cn/Periodical/bp201203027 Li Xiao-lei, Nie Jian-xin, Qin Jian-feng, et al. Numerical simulation of explosion effects in concrete by aluminized explosives[J]. Blasting, 2012, 29(3): 109-114. http://d.wanfangdata.com.cn/Periodical/bp201203027
[7]	王永刚, 王礼立.平板撞击下C30混凝土中冲击波的传播特性[J].爆炸与冲击, 2010, 30(2): 119-124. doi: 10.11883/1001-1455(2010)02-0119-06 Wang Yong-gang, Wang Li-li. Shock wave propagation characteristics in C30 concrete under plate impact loading[J]. Explosion and Shock Waves, 2010, 30(2): 119-124. doi: 10.11883/1001-1455(2010)02-0119-06
[8]	焦楚杰, 孙伟, 高培正.钢纤维高强混凝土抗爆炸研究[J].工程力学, 2008, 25(3): 158-166. http://www.cqvip.com/Main/Detail.aspx?id=26803722 Jiao Chu-jie, Sun Wei, Gao Pei-zheng. Study on steel fiber reinforced high strength concrete subject to blast loading[J]. Engineering Mechanics, 2008, 25(3): 158-166. http://www.cqvip.com/Main/Detail.aspx?id=26803722
[9]	Rosenberg Z, Yaziv D, Partom Y. Calibration of foil-like manganin gauges in planar shock wave experiments[J]. Journal of Applied Physics, 1980, 51(7): 3702-3705. doi: 10.1063/1.328155
[10]	Kury J W. Metal acceleration by chemical explosives[C]//Proceedings of the 4th International Symposium on Detonation. Wahington DC, USA, 1965: 3-13.
[11]	Miller P J. A reactive flow model with coupled reaction kinetics for detonation and combustion of non-ideal explosives[C]//MRS Proceedings. 1994, 418: 413-420.
[12]	覃剑锋.含铝炸药在混凝中的爆炸作用研究[D].北京: 北京理工大学, 2012: 17-18.
[13]	李澎.非理想炸药水下爆炸能量数出结构研究[D].北京: 北京理工大学, 2006: 25-26.
[14]	Cole R H. Underwater Explosion[M]. Princeton, USA: Princeton University Press, 1948: 86-90.