高压物理学报2011，Vol.25Issue(1)：8-14,7.
冲击作用下HMX晶体孔洞塌缩热点生成机制的细观数值模拟
Mesoscale Simulation of Cavity Collapse Hot Spot Mechanism in HMX under Shock Loading
摘要
Abstract
The origin, ignition, growth of hot spot are the factors to understand shock initiation in heterogeneous explosive. The process of cavity collapse in HMX under shock loading was simulated using discrete element method. The results showed that the visco-plastic deformation formed hot spot mechanism and there was serious shear distortion around cavity under low impact. It was also found that the micro-jetting formed hot spot under high impact. The mesoscale process of hot spot formation and cavity collapse were gained.关键词
离散元法/热点/孔洞塌缩/细观数值模拟Key words
discrete element method/ hot spot/ cavity collapse/ mesoscale simulation分类
数理科学引用本文复制引用
傅华,赵峰,谭多望,王文强,尚海林..冲击作用下HMX晶体孔洞塌缩热点生成机制的细观数值模拟[J].高压物理学报,2011,25(1):8-14,7.基金项目
中国工程物理研究院科学技术重大基金(2005Z0101) （2005Z0101）
国家自然科学基金(10772167) （10772167）
国防科技重点实验室基金(9140C6709020907) （9140C6709020907）
