Experimental and Numerical Studies on Flyer Initiation Device
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A novel explosive driven flyer initiation device with changeable velocity was designed. Flyer initiation tests with different densities PETN were finished and the history of velocity of flyer was observed by VISAR. Parameters of JWL EOS of PETN with different densities were calculated by VLW EOS. Velocities of flyer was simulated by the finite element hydrocode Ansys/Ls-dyna, which were coincided with results of tests. It testified feasibility of numerical method to calculate velocity of flyer. The relationships between flyer velocity and density of PETN were gained,so that the velocity of flyer could be adjusted from 2660 m?s-1 to 3150 m?s-1 with corresponding pressure range of 54-86 GPa.
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蒋小华,陈清畴,李敏,等.一种小型炸药驱动飞片装置的试验与数值模拟研究[J].含能材料,2010,18(6):670-673. JIANG Xiao-hua, CHEN Qing-chou, LI Min, et al. Experimental and Numerical Studies on Flyer Initiation Device[J]. Chinese Journal of Energetic Materials,2010,18(6):670-673.