A Study on the Mesh Generation Method for Numerical Simulation of Blast Wave

SHI Lei; DU Xiu-li; FAN Xin

doi:10.3969/j.issn.0254-0037.2010.11.005

Journal of Beijing University of Technology > 2010 > 36(11): 1465-1470. > DOI: 10.3969/j.issn.0254-0037.2010.11.005

SHI Lei, DU Xiu-li, FAN Xin. A Study on the Mesh Generation Method for Numerical Simulation of Blast Wave[J]. Journal of Beijing University of Technology, 2010, 36(11): 1465-1470. DOI: 10.3969/j.issn.0254-0037.2010.11.005

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A Study on the Mesh Generation Method for Numerical Simulation of Blast Wave

College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100022, China

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Received Date: May 14, 2009
Available Online: December 02, 2022

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In the process of blast wave numerical simulation,the accuracy of blast wave propagation is strongly dependent on the size of finite element mesh of air and explosive.Nowadays,most of the commonly used methods of blast wave numerical simulation are aiming at one certain equivalent weight,thus,these methods have limitations in application.In order to solve the problem,this paper proposes a mesh generation method taking account of the equivalent weight and conducts amount of calculations by using the finite element software LS-DYNA.The results indicate that this method provides not only better applicability,but also higher accuracy of numerical simulation by concerning computational efficiency.
- blast wave,
- equivalent weight,
- mesh generation,
- numerical simulation

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[1]	GANTES C J,PNEVMATIKOS NG.Elastic-plastic response spectra for exponential blast loading[J].International Journal of Impact Engineering,2004,30:323-343.
[2]	SHI Yan-chao,LI Zhong-xian,HAO Hong.Mesh size effect in numerical simulation of blast wave propagation and interaction with structures[J].Transactions of Tianjin University,2008,14(6):396-402.
[3]	GONG Shun-feng,LU Yong,JIN Wei-liang.Simulation of airblast load and its effect on RC Structures[J].Transactions of Tianjin University,2006,12(Suppl):165-170.
[4]	廖维张.常规武器爆炸作用下地下结构的动力响应及智能隔震研究[D].北京:北京工业大学建筑工程学院,2007.LIAO Wei-zhang.Dynamic response and intelligent vibration isolation of underground structures under explosion of cohventional weapons[D].Beijing:The College of Architecture and Civil Engineering of Beijing University of Technology,2007.(in Chinese)
[5]	杨鑫,石少卿,程鹏飞.空气中TNT爆炸冲击波超压峰值的预测及数值模型[J].爆破,2008,25(1):15-18.YANG Xin,SHI Shao-qing,CHENG Peng-fei.Forecast and simulation of peak overpressure of TNT explosion shock wave in the air[J].Blasting,2008,25(1):15-18.(in Chinese)
[6]	李顺波,东兆星,齐燕军,等.爆炸冲击波在不同介质中传播衰减规律及数值模拟[J].振动与冲击,2009,28(7):115-117.LI Shun-bo,DONG Zhao-xing,QI Yan-jun,et al.Numerical simulation for spread decay of blasting shock ware in different media[J].Journal of Ibration and Shock,2009,28(7):115-117.(in Chinese)
[7]	JOSEF H.爆炸动力学及其应用[M].熊建国,译.北京:科学出版社,1987:126-128.
[8]	BAKER W E.Explosions in air[M].University of Texas Press,Austin,TX,1973:7-15.
[9]	TM5-1300.Structures to resist the effects of accidental explosion[S].America:Department of the Army Technical Manual,Department of the Navy Publication NAVFAC P-397,Department of the Air Force Manual AFM 88-22,Department of the Army,the Navy,and the Air Force,1969.
[10]	LS-DYNA Keyword User’s Manual(Version 950)[M].Livemore Software Technology Corporation,1999:20,33-20.37.
[11]	白金泽.LS-DYNA3D理论基础与实例分析[M].北京:科学出版社,2005:74-75.
[12]	时党勇,李裕春,张胜民.基于ANSYS/LS-DYNA8.1进行显式动力分析[M].北京:清华大学出版社,2005:216-235.

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