Shock Initiation Experiments with Modeling on a DNAN Based Melt-Cast Insensitive Explosive

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外文摘要：2,4-dinitroanisole(DNAN)is a good replacement for 2,4,6-trinitrotoluene(TNT)in melt-cast explosives due to its superior insensitivity.With the increasing use of DNAN-based melt-cast explosives,the pre-diction of reaction violence and hazard assessment of the explosives subjected to shock is of great sig-nificance.This study investigated the shock initiation characteristics for a DNAN-based melt-cast explosive,DHFA,using the one-dimensional Lagrangian apparatus.The embedded manganin gauges in the apparatus record the pressure histories at four Lagrangian positions and show that shock-to-detonation transition in DHFA needs a high input shock pressure.The experimental data are analyzed to calibrate the Ignition and Growth model.The calibration is performed using an objective function based on both pressure history and the arrival time of shock.Good agreement between experimental and calculated pressure histories indicates the high accuracy of the calibrated parameters with the optimi-zation method.

外文关键词：

2,4-Dinitroanisole(DNAN)Shock initiationInsensitive explosivesIgnition and growth modelEquation of state(EOS)

作者：

Feichao Miao、Dandan Li、Yangfan Cheng、Junjiong Meng、Lin Zhou

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作者单位：

School of Chemical Engineering,Anhui University of Science and Technology,Huainan 232001,China

Composite Explosive Research Department,Xi'an Modern Chemistry Research Institute,Xi'an 710065,China

State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China

基金：

Scientific Research Foundation for Highlevel Talents of Anhui University of Science and TechnologyAnhui Provincial Natural Science FoundationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China

项目编号：

2021yjrc382208085QA271197204612002266

出版年：

2024

DOI：

10.1016/j.dt.2023.02.009

防务技术

中国兵工学会

防务技术

CSTPCD

影响因子：0.358

ISSN：2214-9147

年,卷(期)：2024.32(2)

参考文献量38