Double slapper initiation of the PBX

Mendes, R.; Plaksin, I.; Campos, J.; Ribeiro, J.
April 2000
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p915
Academic Journal
The interaction of two divergent detonation waves (DW), initiated simultaneously by two flyer plates in a PBX based on a bimodal particle distribution of RDX was studied. The slappers are generated by the interaction, of a single (25 mm in diameter) flyer plate against a twin pierced barrel. These two flyer plates have the diameter, corresponding to 1.4 the critical diameter of PBX. The used electric gun has 24.4 µF of capacitance and 40 kV of maximum working voltage. It is able to accelerate polyester flyers with 350µm thickness from 2.4 to 4 km/s and polyimide flyers with 125 pm thickness from 3 to 5 km/s. The optical probes based on multifiber strip connected to an electronic streak camera, allowed in real time, direct and side registration of 3D formation through each 3mm of DW run. The results show clearly the initial regular reflection, followed by the transition to an irregular reflection. The Mach stem formation is discussed as a function of inter initiation points distance and of the flyer plates velocity. The results with the PBX sample, initiated simultaneously by two explosives channels are compared to slapper initiation results. New interesting phenomena related to pulsing and re-formation of intense shock interaction are presented.


Related Articles

  • Influence of HMX particle size on the synthesis of nanodiamonds in detonation waves. Kozyrev, N.; Larionov, B.; Sakovich, G. // Combustion, Explosion, & Shock Waves;Mar2008, Vol. 44 Issue 2, p193 

    The effect of the particle size of HMX in alloys with TNT on the synthesis of nanodiamonds in a detonation wave was studied experimentally. Mixtures with a TNT content of 40 to 90% and the specific surface area of HMX varied in the range of 5–510 m2/kg were investigated. For all mixtures,...

  • Effectiveness of Phlegmatizers in Explosive Compositions under Mechanical Loading. Loginov, N. P.; Surkova, S. N. // Combustion, Explosion, & Shock Waves;Jan2006, Vol. 42 Issue 1, p88 

    The mechanism of the effect of phlegmatizers in phlegmatized nitramines under mechanical loading is studied. Current concepts regarding the effect of phlegmatizers on the sensitivity of energetic materials to impact, friction, and vibration are considered; insufficiency of experimental data of...

  • Determination of parameters of detonation waves in PETN and HMX single crystals. Fedorov, A.; Mikhailov, A.; Antonyuk, L.; Nazarov, D.; Finyushin, S. // Combustion, Explosion, & Shock Waves;Sep2011, Vol. 47 Issue 5, p601 

    Detonation parameters in PETN and HMX single crystals are experimentally studied. The state parameters at the Chapman-Jouguet point and the parameters of the Neumann spike and chemical reaction zone are obtained. The duration and width of the chemical reaction zone in single crystals are...

  • Detonation velocity of BTNEN/Al. Gogulya, M.; Makhov, M.; Brazhnikov, M.; Dolgoborodov, A. // Combustion, Explosion, & Shock Waves;Jul2006, Vol. 42 Issue 4, p480 

    The effect of the addition of Al on the detonation velocity of bis(2,2,2-trinitroethyl) nitramine (BTNEN) was studied experimentally. It is shown that the dependence of the detonation velocity of BTNEN on the initial density is nearly linear, and a 75/25 BTNEN/Al mixture is characterized by an...

  • Application of detonation shock dynamics to the propagation of a detonation in nitromethane in a packed inert particle bed. Frost, David L.; Aslam, Tariq; Hill, Larry G. // AIP Conference Proceedings;2000, Vol. 505 Issue 1, p821 

    A multidimensional implementation of DSD, formulated with the level set method, is applied to track the propagation of a detonation wave in a heterogeneous explosive consisting of an array of inert cylindrical obstacles with a liquid explosive in the interstitial space. With the Huygens...

  • Proton Radiography Examination of Unburned Regions in PBX 9502 Corner Turning Experiments. Ferm, Eric N.; Morris, Christopher L.; Quintana, John P.; Pazuchanic, Peter; Stacy, Howard; Zumbro, John D.; Hogan, Gary; King, Nick // AIP Conference Proceedings;2002, Vol. 620 Issue 1, p966 

    PBX 9502 Corner Turning Experiments have been used with various diagnostics techniques to study detonation wave propagation and the boosting of the insensitive explosive. In this work, the uninitiated region of the comer turning experiment is examined using Proton Radiography. Seven transmission...

  • Reaction Zone Transformation for Steady-State Detonation of High Explosives under Initial Density Increase. Utkin, Alexander V.; Kolesnikov, Sergey A.; Pershin, Sergey V.; Fortov, Vladimir E. // AIP Conference Proceedings;2002, Vol. 620 Issue 1, p938 

    The laser interferometric system VISAR was used to investigate the detonation waves structure of pressed RDX, HMX, TNETB, and ZOX with different initial density. The experimental results are the surface velocity profiles of foils placed at the boundary between a HE sample and a water "window"....

  • Pressure Wave Measurements in Cylinders of Detonating LX-17. Forbes, J. W.; Souers, P. C.; Urtiew, P. A.; Vandersall, K. S.; Garcia, F.; Greenwood, D. W.; Green, LeRoy // AIP Conference Proceedings;2002, Vol. 620 Issue 1, p902 

    Manganin gauges with temporal resolution of less than 75 ns were used to measure the detonation wave pressure profile in a right cylinder of LX-17 (TATB/Kel-F: 92.5/7.5 wt.%). Three gauges at different Lagrange locations were on the centerline of the 5.08 cm diameter cylinder at distances...

  • Structure of the Steady-State Detonation Wave in Pressed RDX. Utkin, A. V.; Kolesnikov, S. A.; Fortov, V. E. // Doklady Physics;Dec2001, Vol. 46 Issue 12, p839 

    Examines the structure of a steady-state detonation wave in pressed explosives. Particle-size distribution; Velocity of motion of aluminum foils; Increase in initial density.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics