Numerical Analysis of the Exterior Explosion Effects on the Buildings with Barriers

Abstract:

Generation and transmission of blast waves in real terrains is of major importance for risk analysis procedures involving accidental explosion scenarios. This paper aims to show the approach to addressing air pressure waves from explosions using empirical formulas and compare them with numerical computations, which is solved using the computational program AUTODYN. Simulation of a simple model of the building is presented in the interaction with the air pressure wave caused by the explosion, which is initiated at a distance of 30 meters from the front of the building. The explosion process will be shown in 2D axial plane which is then remapped into Eulerian multi-material 3D space using the interaction of the rigid obstacles. The weight of 1000 kg TNT charge is used, which is located one meter above the ground and represents the explosive placed in a car in accordance with FEMA requirements. The effects of the protection structures are investigated.

• Periodical: Applied Mechanics and Materials (Volume 390)
• Pages: 230-234
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.390.230
• Online since: August 2013
• Authors: Eng Juraj Králik, Michal Baran
• Keywords: AUTODYN, Barriers, Blast Wave, Building, Simulation

References

[1] AUTODYN: Theory manual Revision 4. 1, San Ramon, California : Century Dynamics. (2001).

[2] M.Y.H., Bangash, T. Bangash : Explosion-Resistant Buildings. Design, Analysis, and Case Studies. Springer Berlin Heidelberg New York, ISBN-13 978-3-540-20618-7, (2006).

[3] Departments of the Air Force, Army, and Navy. Structures to Resist the Effects of Accidental Explosions, Air Force Manual 88-22, Army Technical Manual 5-1300, and Navy Publication NAVFAC P-397, Revision 1, Washington, DC. (1990).

DOI: 10.1061/40753(171)209

[4] FEMA 439A, Reference Manual to Mitigate Potential Terrorist Attack against Buildinds, NEHRP USA. (2003).

[5] J., Králik : Safety and Reliability of Nuclear Power Buildings in Slovakia. Earthquake-Impact-Explosion. Published by STU Bratislava, 307pp. ISBN 978-80-227-3112-6. (2009).

[6] J. Králik, P. Rozsár : Nonlinear Analysis of the Reinforced Concrete Wall Subjected to Blast Loading. In Engineering Mechanics 2009, Svratka, 11. -14. may 2009, pp.146-147, ISBN 978-80-86246-35-2, Full Text in CD, 11pp. (2009).

[7] B. Luccioni, D. Ambrosini, R. Danesi : Blast load assessment using hydrocodes, Engineering Structures 28, 1736-1744, (2006).

DOI: 10.1016/j.engstruct.2006.02.016

[8] Y. Lu, W. Zhongqi : Characterization of structural effects from above-ground explosion using coupled numerical simulation, Computers & Structures, Science Direct, doi: 10. 1016/ j. compstruc. 2006. 05. 002. (2006).

DOI: 10.1016/j.compstruc.2006.05.002

[9] P. Maňas, L. Kroupa : Simulation within Force Protection Engineering, In proc. International Conference on Military Technologies 2011, University of Defence in Brno, pp.209-216. (2006).