Method for production of long duration blast wave

SHI Yanchao; YANG Sen; CUI Jian; YAN Panyun

doi:10.11835/j.issn.2096-6717.2021.137

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Method for production of long duration blast wave

Anti-explosion and Protection of Engineering Structures | 更新时间：2023-06-25

- Method for production of long duration blast wave
- Journal of Civil and Environmental Engineering Vol. 45, Issue 1, Pages: 35-43(2023)
- 作者机构：
  
  1.天津大学，滨海土木工程结构与安全教育部重点实验室，天津 300350
  2.天津大学，建筑工程学院，天津 300350
  3.北京航天发射技术研究所，北京 100076
- 作者简介：
  
  SHI Yanchao (1982- ), PhD, professor, main research interest: blast analysis and design of building structures,E-mail: yanchaoshi@tju.edu.cn.
  CUI Jian （corresponding author）， PhD， associate professor， E-mail： jian.cui@tju.edu.cn.
- 基金信息：
  
  National Natural Science Foundation of China(51878445;51908405)
- DOI：10.11835/j.issn.2096-6717.2021.137
  CLC： O384
- Received：16 March 2021，
  
  Published：25 February 2023
- 稿件说明：
移动端阅览
SHI Yanchao, YANG Sen, CUI Jian, et al. Method for production of long duration blast wave[J]. Journal of Civil and Environmental Engineering, 2023, 45(1): 35-43.
DOI：

SHI Yanchao, YANG Sen, CUI Jian, et al. Method for production of long duration blast wave[J]. Journal of Civil and Environmental Engineering, 2023, 45(1): 35-43. DOI： 10.11835/j.issn.2096-6717.2021.137.

摘要

不同持时的爆炸冲击波对建筑结构及防护工程的作用显著不同，在试验或数值模拟中常需要得到长持时爆炸冲击波，延长爆炸冲击波正压作用时间是研究长持时爆炸荷载下结构响应的难点。在AUTODYN中建立长筒爆室小当量炸药多点延时起爆模型，分析爆炸冲击波在长筒爆室中的传播规律，研究管道长度、延时起爆时差、起爆顺序对冲击波波形的影响。结果表明：距离增加，超压峰值减小、正压持续时间增加；根据炸药量和爆室长度合理地选择起爆时差可以获得波形丰满且连续衰减的超压时程曲线；爆室底部起爆、合理控制延时间隔，可以形成类似于大当量远距离爆炸下产生的连续衰减的长持时冲击波。分别给出100、200 ms爆炸持时起爆方案，为长持时爆炸模拟装置的设计提供技术支持。

Abstract

The effect of blast wave with different duration on building structure and protection engineering are obviously different

long duration blast wave is generally essential in experimental studies and numerical simulations. However

it is difficult to prolong the duration of the positive pressure in the practice experiment of studying the structural responses under long duration blast load. A multi-point delayed detonation model with multiple small charge TNT explosives in a long tube explosion chamber is established by computational fluid dynamics software AUTODYN. The propagation law of blast wave in the long tube is analyzed. On this basis

the influences of length of explosion chamber

the delay detonation time and the initiation sequence on the blast wave form are further investigated. The results show that

as the distance increases

the peak value of overpressure decreases and the duration of positive pressure increases. The overpressure time-history curve with full and continuous attenuation of the wave form can be obtained by selecting the delay detonation time rationally according to the amount of explosive and the length of the explosion chamber. Detonating from the bottom of the explosion chamber and controlling the delay detonation time interval reasonably can form a long-duration blast wave which is equivalent with the continuous attenuation produced by a large equivalent charge long distance explosion. The parameters such as the length of explosion chamber

amount of explosive and delay detonation time are adjusted repeatedly

and the detonation schemes of 100 ms explosion duration and 200 ms explosion duration are provided

providing technical support for design of long duration explosion simulation device.

关键词

Keywords

references

W H ANDERSEN , , N A LOUIE . . Shock tube for simulating nuclear blast durations [J]. . The Review of Scientific Instruments , , 1978 , , 49 (( 12 ): ): 1729 ..

M F CAMPBELL , , T PARISE , , A M TULGESTKE , , et al . . Strategies for obtaining long constant-pressure test times in shock tubes [J]. . Shock Waves , , 2015 , , 25 (( 6 ): ): 651 -- 665 ..

A ISMAIL , , M EZZELDIN , , W EL-DAKHAKHNI , , et al . . Blast load simulation using conical shock tube systems [J]. . International Journal of Protective Structures , , 2020 , , 11 (( 2 ): ): 135 -- 158 ..

杨科之 , , 杨秀敏 . . 坑道内化爆冲击波的传播规律 [J]. . 爆炸与冲击 , , 2003 , , 23 (( 1 ): ): 37 -- 40 ..

K Z YANG , , X M YANG . . Shock waves propagation inside tunnels [J]. . Explosion and Shock Waves , , 2003 , , 23 (( 1 ): ): 37 -- 40 . . (in Chinese) .

李秀地 , , 郑颖人 , , 李列胜 , , 等 . . 长坑道中化爆冲击波压力传播规律的数值模拟 [J]. . 爆破器材 , , 2005 , , 34 (( 5 )：): 5 -- 8 ..

X D LI , , Y R ZHENG , , L S LI , , et al . . Simulation of the pressure attenuation of chemical shock wave in long tunnels [J]. . Explosive Materials , , 2005 , , 34 (( 5 ): ): 5 -- 8 . . (in Chinese) .

王朝成 , , 任辉启 , , 穆朝民 , , 等 . . 一端开口圆筒形爆室线状装药爆炸冲击波峰值压力计算分析 [J]. . 振动与冲击 , , 2014 , , 33 (( 9 ): ): 122 -- 125 ..

C C WANG , , H Q REN , , C M MU , , et al . . Analysis and calculation for peak pressure of shock wave of linear charge explosive in a cylinder blasting chamber [J]. . Journal of Vibration and Shock , , 2014 , , 33 (( 9 ): ): 122 -- 125 . . (in Chinese) .

穆朝民 , , 任辉启 , , 李永池 , , 等 . . 爆室内爆炸流场演化与壳体动力响应的数值模拟 [J]. . 弹箭与制导学报 , , 2010 , , 30 (( 2 ): ): 82 -- 86 ..

C M MU , , H Q REN , , Y C LI , , et al . . Numerical simulation on blast flow field evolution and dynamic response of blast chamber [J]. . Journal of Projectiles, Rockets, Missiles and Guidance , , 2010 , , 30 (( 2 ): ): 82 -- 86 . . (in Chinese) .

姚哲芳 , , 任辉启 , , 沈兆武 . . 柱状装药爆炸条件下厚壁圆筒爆室内流场及结构动力响应分析 [J]. . 爆炸与冲击 , , 2012 , , 32 (( 5 ): ): 449 -- 456 ..

Z F YAO , , H Q REN , , Z W SHEN . . Internal blast flow field and dynamic responses of thick-walled cylinder subjected to cylindrical charge explosion [J]. . Explosion and Shock Waves , , 2012 , , 32 (( 5 ): ): 449 -- 456 . . (in Chinese) .

辛凯 , , 梁仕发 , , 宋红民 , , 等 . . 爆炸波模拟装置延长冲击波正压作用时间的关键技术 [J]. . 防护工程 , , 2013 (. ( 5 ): ): 9 -- 13 ..

K XIN , , S F LIANG , , H M SONG , , et al . . The key technology for increasing positive duration in a blast wave simulator [J]. . Protective Engineering , , 2013 (. ( 5 ): ): 9 -- 13 . . (in Chinese) .

刘平 , , 王予民 , , 刘瑞朝 . . 空气与土中爆炸波模拟装置的数值分析 [J]. . 焦作工学院学报(自然科学版) , , 2002 , , 21 (( 4 ): ): 305 -- 307 ..

P LIU , , Y M WANG , , R C LIU . . Numerical analysis for simulation equipment of blasting wave in air and soil [J]. . Journal of Jiaozuo Institute of Technology , , 2002 , , 21 (( 4 ): ): 305 -- 307 . . (in Chinese) .

T C CHAPMAN , , T A ROSE , , P D SMITH . . Blast wave simulation using AUTODYN2D: A parametric study [J]. . International Journal of Impact Engineering , , 1995 , , 16 (( 5/6 ): ): 777 -- 787 ..

闫秋实 . . 典型地铁结构内爆炸流场分布及动力反应研究 [D]. . 北京 : : 清华大学 , , 2011 : : 39 -- 43 ..

Q S YAN . . Flow field distribution and dynamic response analysis of typical subway structure subjected to internal explosion [D]. . Beijing : : Tsinghua University , , 2011 : : 39 -- 43 . . (in Chinese) .

Y C SHI , , Z X LI , , H HAO . . Mesh size effect in numerical simulation of blast wave propagation and interaction with structures [J]. . Transactions of Tianjin University , , 2008 , , 14 (( 6 ): ): 396 -- 402 ..

B LUCCIONI , , D AMBROSINI , , R DANESI . . Blast load assessment using hydrocodes [J]. . Engineering Structures , , 2006 , , 28 (( 12 ): ): 1736 -- 1744 ..

卢红琴 , , 刘伟庆 . . 坑道截面形状对化爆冲击波传播规律的影响程度分析 [J]. . 南京工业大学学报(自然科学版) , , 2009 , , 31 (( 6 ): ): 41 -- 44 ..

H Q LU , , W Q LIU . . Influence of cross-section shape of tunnel on in-tunnel air blast wave propagation [J]. . Journal of Nanjing University of Technology (Natural Science Edition) , , 2009 , , 31 (( 6 ): ): 41 -- 44 . . (in Chinese) .

李铮 , , 项续章 , , 郭梓熙 . . 各种炸药的殉爆安全距离 [J]. . 爆炸与冲击 , , 1994 , , 14 (( 3 ): ): 231 -- 241 .

Z LI , , X Z XIANG , , Z X GUO . . Various explosives of safety distance of unsympathetic detonation [J]. . Explosion and Shock Waves , , 1994 , , 14 (( 3 ): ): 231 -- 241 . . (in Chinese) .

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Related Author

SHI Yanchao

LIU Shaozeng

CUI Jian

GUO Zongming

Related Institution

School of Civil Engineering

Key Laboratory of Coast Civil Structural Safety of the Ministry of Education, Tianjin University

Shenzhen Municipal Design & Research Institute Co., Ltd.

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