新型熔铸载体DNP炸药的临界直径研究

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Study on the Critical Diameter of the New Melt-Cast Matrix DNP Explosives

LIU Pan（D2） ， BI Xiaolu①， ZHU Yingzhong①②，LIN Wenpeng①， YING Wujiang②， ZHANG Xiangrong②， ZHOU Lin② （20 ① Chongqing Hongyu Precision Industry Group Co.，Ltd.（Chongqing，402760） ② State Key Laboratory of Explosion Science and SafetyProtection，Beijing Institute of Technology（Beijing，100081）

[ABSTRACT]Inorder torevealthe detonation propagation characteristicsof thenew melt-cast matrix 3，4-dinitrophyrazole（DNP），atwo-dimensionalaxisymmetric numerical calculation model of cylindrical charges was established.The propagation processof the detonation wave of DNP explosive was numericallysimulated using calibrated parameters of the ignition-growth reactionrate equation.Aditionally，the critical diameterof DNP melted explosivewas measuredusing the continuous wire method.Theresults showthatthecalculated critical diameterofDNPexplosiveis 8.2O mm，and the measured critical diameterofDNPexplosive is7.88mm.Thecalculated valuesare in goodagreement with theexperimental values.Bycombining experiments with numerical simulations，the critical diameterof DNPmelt-cast explosives canbe studied，which can provide reference for the formulation design and warhead structure design of DNP explosives.

[KEYWORDS]3，4-dinitropyrazole （DNP）；critical diameter；continuous wire method; numerical simulation

0 引言

随着俄乌冲突的不断升级以及各国军事力量的迅猛发展，炸药作为武器系统中的核心元素，引起了全球科研工作者越来越多的关注与深入研究。（剩余7492字）