TY - GEN
T1 - Detonation initiation of heterogeneous melt-cast high explosives
AU - Chuzeville, V.
AU - Baudin, G.
AU - Lefrançois, A.
AU - Genetier, M.
AU - Barbarin, Y.
AU - Jacquet, L.
AU - Lhopitault, J. L.
AU - Peix, J.
AU - Boulanger, R.
AU - Catoire, L.
PY - 2017/1/13
Y1 - 2017/1/13
N2 - 2,4,6-trinitrotoluene (TNT) is widely used in conventional and insensitive munitions as a fusible binder, commonly melt-cast with other explosives such as 1,3,5-trinitroperhydro-1,3,5-triazine (RDX) or 3-nitro-1,2,4-triazolone (NTO). In this paper, we study the shock-to-detonation transition phenomenon in two melt-cast high explosives (HE). We have performed plate impact tests on wedge samples to measure run-distance and time-to-detonation in order to establish the Pop-plot relation for several melt-cast HE. Highlighting the existence of the single curve buildup, we propose a two phase model based on a Zeldovich, Von-Neumann, Döring (ZND) approach where the deflagration fronts grow from the explosive grain boundaries. Knowing the grain size distribution, we calculate the deflagration velocities of the explosive charges as a function of shock pressure and explore the possible grain fragmentation.
AB - 2,4,6-trinitrotoluene (TNT) is widely used in conventional and insensitive munitions as a fusible binder, commonly melt-cast with other explosives such as 1,3,5-trinitroperhydro-1,3,5-triazine (RDX) or 3-nitro-1,2,4-triazolone (NTO). In this paper, we study the shock-to-detonation transition phenomenon in two melt-cast high explosives (HE). We have performed plate impact tests on wedge samples to measure run-distance and time-to-detonation in order to establish the Pop-plot relation for several melt-cast HE. Highlighting the existence of the single curve buildup, we propose a two phase model based on a Zeldovich, Von-Neumann, Döring (ZND) approach where the deflagration fronts grow from the explosive grain boundaries. Knowing the grain size distribution, we calculate the deflagration velocities of the explosive charges as a function of shock pressure and explore the possible grain fragmentation.
UR - https://www.scopus.com/pages/publications/85017004578
U2 - 10.1063/1.4971467
DO - 10.1063/1.4971467
M3 - Conference contribution
AN - SCOPUS:85017004578
T3 - AIP Conference Proceedings
BT - Shock Compression of Condensed Matter - 2015
A2 - Ravelo, Ramon
A2 - Sewell, Thomas
A2 - Chau, Ricky
A2 - Germann, Timothy
A2 - Oleynik, Ivan I.
A2 - Peiris, Suhithi
PB - American Institute of Physics Inc.
T2 - 19th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2015
Y2 - 14 June 2015 through 19 June 2015
ER -