The paper presents a second part of a study aiming at understanding some characteristics of an interior explosion within a room with limited venting. Internal explosions may occur as a result of an ammunition storage explosion, or a charge explosion within a room in a terrorist action or a warhead explosion following its penetration into a closed space. This paper follows an experimental study and validation of the problem and aims at an extended numerical investigation of several aspects of the problem. The analysis has been performed for a room with rigid walls having limited venting by using AUTODYN 12 commercial program implementing the Eulerian multi-material approach, and the results were compared with the experimental measurements. An effective simplified model with lumped parameters based on the Bernoulli equation has been developed for the quasi-stationary phase of the detonation products outflow from the room through the venting openings.
A718300 (1974): Engineering Design Handbook. Explosions in Air. Part One. Army Materiel Command Alexandria, VA.
2.
AASTP-1 (2006): Manual of NATO Safety Principles For the Storage of Military Ammunition and Explosives, NATO International Staff – Defense Investment Division.
3.
BakerW.E.CoxP.A.WestineP.S.KuleszJ.J.StrehlowR.A. (1983), Explosion hazards and evaluation, Elsevier, Amsterdam.
4.
BangashM.Y.H. (1993) Impact and Explosion. Analysis and Design. Spon Press: Blackwell Scientific Publications, Oxford.
5.
Ben-DorG.IgraO.ElperinT. (2000), Handbook of Shock Waves. Academic Press: Elsevier.
6.
ChockJ.M.K.KapaniaR.K. (2001). Review of two methods for calculating explosive Air blast. The Shock and vibration digest. Vol. 33 (2), pp. 91–102.
7.
CorneliuB. (2004). Evaluation and rehabilitation of a building affected by a gas explosion. Progress in Structural Engineering and Materials. Vol. 6 (3), pp. 137–146.
8.
DornM.NashM.AndersonG.JonesN.BrebbiaC.A. (1996). The Numerical Prediction of the Collapse of a Complex Brick Building Due to an Internal Explosion, ASME Publications- PVP, Vol. 351, pp. 359–364.
9.
EdriI.SavirZ.FeldgunV.R.KarinskiY.S.YankelevskyD.Z. (2011). On Blast Pressure Analysis Due to a Partially Confined Explosion: I. Experimental Studies. International Journal of Protective Structures, Vol. 2 (1), pp. 1–20.
10.
FeldgunV.R.KarinskiY.S.YankelevskyD.Z. (2011). Some Characteristics of an Interior Explosion within a Room without Venting. Structural Engineering and Mechanics, An International Journal, Vol. 38 (5), pp. 633–649.
11.
GriffithsHPugsleyASaundersO. (1968) Report of the Inquiry into the “Collapse of Flats at Ronan Point, Canning Town”, HMSO.
12.
HuY.WuC.LukaszewiczM.DragosJ.RenJ.HaskeffM. (2011). Characteristics of Confined Blast Loading in Unvented Structures. International Journal of Protective Structures, Vol. 2 (1), pp. 21–43.
13.
IgraO.HuG.FalcovitzJ.HeiligW. (2003). Blast wave reflection from wedges. Journal of Fluids Engineering, vol. 125 (3), pp. 510–519.
14.
KinneyG.F. (1962). Explosive shocks in Air. The Macmillan Co., New York.
15.
KivityY. (1992). The Reflected Impulse on a Curved Wall Produced by a Spherical Explosion in Air. 25th Explosives Safety Seminar, Anaheim, CA.
16.
LiangS.M.WangJ.S.ChenH. (2002). Numerical study of spherical blast-wave propagation and reflection. Shock Waves. Vol. 12 (1), pp. 59–68.
17.
LuccioniB.M.AmbrosiniR.D.DanesiR.F. (2006). Failure of a reinforced concrete building under blast loads. WIT Transactions on Engineering Sciences, Vol. 49, pp. 336–345.
18.
SwisdakMichael M.Jr.. (1975). Explosion Effects in Air. Final Report, A445810.
19.
O'DanielJ.L.KrauthammerT. (1997). Assessment of numerical simulation capabilities for medium–structure interaction systems under explosive loads. Computers and Structures. 63 (5), pp. 875–87.
20.
PodlubnyiV.V.FonarevA.S. (1974). Reflection of a spherical blast wave from a planar surface. Fluid Dynamics, Vol. 9 (6), pp. 921–926.
21.
SavirZ.EdriI.FeldgunV.R.KarinskiY.S.YankelevskyD.Z. (2009). Blast Pressure Distribution on Interior Walls Due to a Partially Confined Explosion, International Workshop on Structure Response to Impact and Blast (IWSRIB), Haifa, Israel, November 15–17, 2009.
TM-5-855-1 (1986). Fundamentals of Protective Design for Conventional Weapons. Department of Army, Washington, DC, USA.
24.
UFC 3-340-02 (Unified Facilities Criteria) (2008): Structures to Resist the Effects of Accidental Explosions. Dept. of the Army, the NAVY and the Air Force, Washington, DC, USA.
YankelevskyD.Z.FeldgunV.R.KarinskiY.S. (2009). Blast Pressure Distribution on Interior Walls Due to a Confined Explosion. 13th International Symposium on Interaction of the Effects of Munitions with Structures (ISIEMS). Bruhl, Germany, May 11–15.
