基于Hopkinson杆技术分析典型传爆药的动态力学性能  

Analysis on Dynamic Properties of Typical Boosters Based on Hopkinson Bars

作　　者：张子敏[1] 许碧英[1] 贾建新[1] 吕永柱[1] 李公法[1] 

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《含能材料》2012年第1期62-66,共5页Chinese Journal of Energetic Materials

摘　　要：采用分离式Hopkinson压杆技术作为动态加载手段,对压装型JH-14C、JHB-1C传爆药及浇注型PBXN-110传爆药进行了冲击加载作用,利用高速摄影及扫描电子显微技术进行了传爆药的宏观破坏过程及状态观察,分析了试样的微观损伤模式,并得到了三种典型传爆药高应变率动态响应下的应力-应变关系曲线,表明,压装传爆药和浇注传爆药的动态力学性能存在明显不同。所得结果可作为过载载荷环境下侵彻战斗部设计中比较选择传爆装药的参考依据。The dynamic properties of two types ot pressed booster exp,os,ws （JH-14C,JHB-1C）and one cast booster explosive PBXN-110 were investigated using Split Hopkinson Pressure Bars （SHPB）. The macro and micro failure modes of the recovery specimen were analyzed by high-speed photography and scanning electron microscope（ SEM） ,the corresponding stress-strain curves of three distinct explosives under high strain-rate dynamic response were obtained. Results show that the dynamic mechanical properties of pressed and cast booster explosives are distinctly different and also can be used as reference and guidance for comparison and choice of booster explosives in penetrate warhead designed for over-loading environment.

关 键 词：爆炸力学 传爆药 动态力学性能 应力-应变曲线 抗过载 

分 类 号：TQ560.1[化学工程—炸药化工]