Experimental measurements of the detonation wave profile in a TATB based explosive

被引：8
|
作者：
Bouyer, V. [1 ]
Doucet, M. [1 ]
Decaris, L. [1 ]
机构：
[1] CEA, DAM, F-37260 Le Ripault, France
来源：
NEW MODELS AND HYDROCODES FOR SHOCK WAVE PROCESSES IN CONDENSED MATTER | 2010年 / 10卷
关键词：
D O I：
10.1051/epjconf/20101000030
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We report results of the experimental measurements of the detonation wave profile of the TATB based plastic bonded explosive T2 (97 w. % of TATB) using VISAR and Heterodyne Velocimetry (HV - same as Photon Doppler Velocimetry). The experiment consists in initiating a detonation wave in a 15 mm diameter cylinder of explosive using an explosive wire detonator and an explosive booster. In order to obtain the particle velocity history in the reaction zone, we measure particle velocity at the interaction of the detonation front with an aluminized window or the free surface velocity of a metallic foil. Lithium Fluoride (LIF), PMMA and steel have been tested. Several shots have been performed for different lengths of explosive. We compare the VISAR and HV measurements. With LIF and steel, VISAR and HV diagnostics give very similar profiles. The ZND profile obtained on LIF is resolved with both techniques. With PMMA, HV gives a more accurate profile than VISAR in the reaction zone. There is no evidence of the influence of the explosive cylinder length.
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页数：5
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