Summary
Near-field impulse from metalized explosives is dominated by afterburning energy release and is influenced by a small confinement effect that is caused by ground reflected shocks in height-of-burst (HOB) scenarios. The ground reflected shock interacts with the fireball, reheating the detonation products and distorting the fireball interface which promotes afterburning chemistry. The air behind the primary reflected shock is doubly shock heated, which improves the local heating rate of the dispersed metal particles to their ignition temperature. Shock reverberation between the ground and expanding fireball, interaction with the emerging secondary shock, arrival of the incident particle front and localized enhanced chemistry have a compounding effect and lead to increased loading observed on the ground. These effects are of particular interest for structural response resulting from near-field explosions.
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References
Murray, S.B., Anderson, C.J., Gerrard, K.B., Smithson, T., Williams, K. and Ritzel, D.V.: Overview of the 2005 Northern Lights Trials, Proc. ISSW26, Gottingen, Germany, 2007.
Zarei, Z., Frost, D.L., Donahue, L., Whitehouse, D.: Simplified modeling of non-ideal blast waves from metallized heterogeneous explosives, 20th ICDERS, Montreal, Canada, 2005.
Ripley, R.C., Donahue, L., Dunbar, T.E., Zhang, F.: Explosion performance of aluminized TNT in a chamber, Proc. 19th MABS, Calgary, Canada, 2006.
Ritzel, D.V., Ripley, R.C., Murray, S.B., Anderson, C.J.: Near-field blast phenomenology of thermobaric explosions, Proc. ISSW26, Gottingen, Germany, 2007.
Zhang, F., Yoshinaka, A., Anderson, C.J., Ripley, R.C.: Confined heterogeneous blast, Proc. 19th Military Aspects of Blast and Shock, Calgary, Canada, 2006.
Leadbetter, J., Ripley, R.C., Zhang, F., Frost, D.L.: Multiple energy scaling of blast waves from heterogeneous explosives, Proc. 21st ICDERS, Poitiers, France, 2007.
Frost, D.L., Zhang, F.: The nature of heterogeneous blast explosives, Proc. 19th Military Aspects of Blast and Shock, Calgary, Canada, 2006.
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© 2009 Springer-Verlag Berlin Heidelberg
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Ripley, R. et al. (2009). Ground reflection interaction with height-of-burst metalized explosions. In: Hannemann, K., Seiler, F. (eds) Shock Waves. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-85168-4_44
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DOI: https://doi.org/10.1007/978-3-540-85168-4_44
Publisher Name: Springer, Berlin, Heidelberg
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