摘要
进行直径10mm的圆筒实验,根据冲击Hugoniot关系,拟合了HNS-Ⅳ炸药的未反应时的JWL状态方程,并通过数值模拟确定了HNS-Ⅳ炸药爆轰产物JWL状态方程参数;测量炸药/窗口界面粒子速度历程,结合数值模拟获得HNS-Ⅳ炸药的点火增长模型反应速率方程参数。研究表明,HNS-Ⅳ炸药点火增长模型能够描述反应过程并与实验结果吻合较好。
To develop an ignition and growth reaction flow model for HNS-Ⅳ explosive,cylinder tests were conducted on HNS-Ⅳ explosive and the expansion processes of the copper cylinder walls were recorded by a GSJ high speed rotating mirror camera,and particle velocities at the interface between HNS-Ⅳ explosive and LiF window were measured with laser velocity interferometry（VISAR）.The corresponding numerical simulations were carried out by ANSYS/LS-DYNA,respectively.The JWL equation-of-state parameters for unreacted explosive were fitted to the available shock Hugoniot data.And by combining the experimental results and numerical simulations,the JWL equation-of-state parameters for detonation product were determined,as well as reactive rate parameters for reaction ignition and growth in HNS-Ⅳ explosive.Investigated results show that the developed ignition and growth reaction flow model can be used to picture the reaction process of HNS-Ⅳ explosive,and the numerically simulated results can agree with the experimental ones.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2012年第3期328-332,共5页
Explosion and Shock Waves
关键词
爆炸力学
反应速率方程
界面粒子速度
HNS-Ⅳ炸药
mechanics of explosion
reaction rate EOS
interface particle velocity
HNS-Ⅳ explosive
