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Primary explosive detonation properties of BNCP

Author: ZuoWenZhi
Tutor: LongXinPing;HeBi;JiangXiaoHua
School: Chinese Academy of Engineering Physics
Course: Weapons systems and the use of engineering
Keywords: BNCP VLW equation of state of detonation products Cowan equation of state JWL equation of state DISAR
CLC: TQ560.1
Type: Master's thesis
Year: 2011
Downloads: 63
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Abstract


In this paper, primary explosive detonation BNCP performance following several aspects: ( 1 ) By studying BNCP solid detonation products Co, Cowan and thermodynamic equation of state parameter function coefficients , using the calculated data , and further use of VLW detonation its detonation products equation of state program performance computing , and in order to verify the VLW equation of state of detonation products detonation properties of metal complexes calculated applicability metal complexes on the other two primary explosive -DACP and four ammonia · pair ( 3,5 - nitrotriazole ) copper (Ⅱ) with detonation parameters were calculated results with the experimental data given in the literature basically consistent . Meanwhile , the use of explosives VLW program calculates three isentropic expansion of their data and fitting equation of state of detonation products JWL parameters for numerical simulation provides important data, and to make up for the lack of VLW program expanded its range of applications. ( 2 ) In order to verify VLW program BNCP detonation velocity calculated using the network board grooved charge way to test a different charge sizes BNCP detonation velocity value, and get a different charge sizes detonation velocity variation of the fitting the BNCP charge diameter detonation velocity relationship with semi-empirical formula , but also access to BNCP critical diameter . ( 3 ) all- fiber displacement interferometer speedometer (DISAR) tested BNCP driven flyer speed , got two different charge densities slapper speed curve . ( 4 ) In order to verify VLW program calculates the JWL equation of state parameter obtained in the numerical simulation on the applicability of , the establishment of small size BNCP charge driven flyer numerical calculation model, using nonlinear dynamics program ANSYS LS-DYNA for DISAR of numerical simulation experiments , the speed obtained with the experimental results flyer basically consistent . While establishing a corresponding model BNCP charge sizes at different drive different materials and different thicknesses flyer was simulated .

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