Diameter Effect In Initiating Explosives, Numerical Simulations

Lefran?ois, A ; Benterou, J ; Roeske, F ; Roos, E

Lawrence Livermore National Laboratory

关键词: Velocity;    Ignition;    Pellets;    71 Classical And Quantum Mechanics, General Physics;    Lasers;   

DOI  :  10.2172/893995
RP-ID  :  UCRL-TR-219006
RP-ID  :  W-7405-ENG-48
RP-ID  :  893995

美国|英语

来源: UNT Digital Library

【 摘 要 】

The ability to safely machine small pieces of HE with the femtosecond laser [1][2][3] allows diameter effect experiments to be performed in initiating explosives in order to study the failure diameter, the reduction of the detonation velocity and curvature versus the diameter. The reduced diameter configuration needs to be optimized, so that the detonation products of the first cylinder will not affect the measurement of the detonation velocity of the second cylinder with a streak camera. Different 2D axi-symmetrical configurations have been calculated to identify the best solution using the Ignition and Growth reactive flow model for LX16 Pellet [4] with Ls-Dyna.