Numerical Simulation on Embedded Steel Frame Concrete Blast Wall Resisting Air Shock Wave

Abstract:

Embedded steel frame concrete blast walls can effectively counteract and dissipation the air-blast wave of the explosion. By contrast widely recognized air-blast wave empirical formula to verify the feasibility of the method of explosion load simplify model numerical simulation calculate the shock wave problems by using the explicit finite element software ANSYS/LS-DYNA and keywords *LOAD_BLAST. Obtained, The results of simplified explosion shock wave load by *load_blast have small difference with the actual explosion model; The destruction of the wall are mainly shear and brittle failure; The ability of Embedded steel frame blast wall resist air-blast wave significantly greater than other wall.

• Periodical: Applied Mechanics and Materials (Volumes 548-549)
• Pages: 1763-1767
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.548-549.1763
• Online since: April 2014
• Authors: Hai Jun Wang*, Yong Yao, Zhao Qiang Zhang, Xiao Pan Yang, Yu Ping Zhu
• Keywords: Air-Blast Wave, Embedded Steel Frame Concrete Blast Walls, LOAD_BLAST, LS-DYNA

References

[1] ZHANG Li, ZHANG Lijing. Dynamic Response of Reinforced Concrete Explosion-proof Wall under Explosion Loading[J]. China Safety Science Journal, 2008, 9. 18(9): 99-105.

[2] Yermi Negri, Maj. Jim MacKenzie, Reuben Eytan. The'MAYA DURISOL' Protective System-research, Development, Testing and Implementation. Proceedings of the 8th International symposium on Interaction of Munitions with structures, Mclean, Virginia, 1997, April 5-9.

[3] Hulton F G, Gough M S. The Development of Steel-plate/ Reinforced Concrete Composite Panels to Resist Explosive Attack [A]. ISIEMS 9, Germany, May, (1999).

[4] M. E. Beyer. Blast loads behind vertical walls [J]. 22nd Explosives Safety Seminar, Dept of Defense Explosives Safety Board, Anaheim, CA, (1986).

[5] T. C. Chapman, T. A. Rose, P. D. Smith. Reflected BlastWave Resultants Behind Cantilever Walls: A New Prediction Technique[J]. Int. J. Impact Engng, 1995, 16(3): 397-403.

DOI: 10.1016/0734-743x(94)00051-w

[6] SUN Juan, NING Jianguo. Graphic Simulation of 3D Explosion and Shock Processes. Computer Simulation, 2003, 20(9): 14-16.

[7] Ding Nana, Yan Dongjin, Ding Ronglong, Xu Yuan. Study of Failure Mechanism of Cantilever Blast Wall[J]. Industrial Construction，2009, 39(supplement): 233-235 turn 330.

[8] MU Chaomin, REN Huiqi, LI Yongqi, XIN Kai. Research into Impact Effect on Wall and Flow Around Wall of Explosion Shock Wave[J]. Mechanics in Engineering. 2009, 31(5): 35-40.

[9] WANG Fei, ZHU Lixin, GU Wenbin. Numerical Simulation of Shock Wave Around-Flow on Basis of ALE Algorithm[J]. Engineering Blasting, 2002，6, 8(2)：13-16.

[10] J Henrych. The dynamics of explosion and his use [M]. Elsevier Scientific Publishing Company, 1979: 106.

[11] LS-DYNA. Keyword User's Manual. Livermore, California: Livermore Software Technology Coporation, (2006).

[12] WU Jun, LIU Jingbo, DU Yixin. Elastic-plastic Dynamic Calculation and Numerical Analysis of Assembling Blast Resistant Wall under Effect of Vehicle Bombs[J]．Journal of Disaster Prevention and Mitigation Engineering, 2007, 27(4): 394-400.

[13] YU Wenjing, SHI Jianyong, ZHAO Jiancheng. Research of dynamic mechanical behavior of Q345 steel[J]. Building Structure, 2011, 41(3): 28-30.

[14] Holmquist T J, Johnson G R ，Cook W H. A Computational Constitutive Model for Conctrte Subjected to Large Strains, High Strain Rates, and High Pressures, 14th Symp. On Ballistics Québec, Canada 26-29 September, 1993: 591-600.

DOI: 10.1115/1.4004326

[15] SHI Dangyong. Explicit Dynamic Analysis Based on ANSYS/LA-DYNA8. 1. Tsinghua University Press, (2004).