RDX/TNT、HMX/TNT炸药D_n(κ)关系研究  

Study on the D_n(κ) relation for the RDX/TNT and HMX/TNT rate sticks

作　　者：张宏亮[1] 黄风雷[1] 

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《爆炸与冲击》2012年第5期495-500,共6页Explosion and Shock Waves

基　　金：国家自然科学基金项目(10832003)~~

摘　　要：研究了不同配比HMX/TNT炸药的Dn(κ)关系,并与不同配比RDX/TNT炸药的Dn(κ)关系进行了对比。结果表明,配比相同时HMX/TNT炸药Dn(κ)关系曲线总是在RDX/TNT炸药Dn(κ)关系曲线上方;RDX/TNT和HMX/TNT炸药的Dn(κ)关系曲线随着炸药中TNT含量增加而下移。引入变量Rt分别将两种混合炸药的Dn(κ)关系推广为Dn(κ,Rt)关系,给定变量Rt就可以通过Dn(κ,Rt)关系得出相应未标定的Dn(κ)关系,Dn(κ,Rt)关系不仅可以减少实验标定次数,并且能满足DSD方法计算精度要求。It is necessary to determine the quantitative relation between the local normal detonation wave speed Dn and the total curvature κ when detonation shock dynamics （DSD） is used to study nonideal detonation. We extended our work on the Dn （κ） relation of HMX/TNT rate sticks from the RDX/TNT rate sticks. The Dn （to） relation of HMX/TNT rate sticks in the different mixing ratios was analyzed, and the Dn （κ） relation was compared between the RDX/TNT explosives and the HMX/ TNT explosives. Results show that the Dn （κ） curves of RDX/TNT explosives were subjacent on the Dn（κ） curves of HMX/TNT explosives at the same ratio. As the TNT percentage added, the Dn（κ） curves of RDX/TNT and HMX/TNT explosives were moved down. The Dn （Dn,Rt） law was induced from the relation of Dn（κ） by introducing into the variable Rt. The Dn（Dn,Rt） law could not only reduce the number of experimental calibration, but also meet the simulation precision of DSD method.

关 键 词：爆炸力学 Dn(κ)关系 高速摄影 HMX/TNT 非理想爆轰 配比 DSD方法 RDX/TNT 

分 类 号：O381[理学—流体力学]