火炸药学报2016，Vol.39Issue(6)：69-73,5.DOI:10.14077/j.issn.1007-7812.2016.06.012
摩擦效应对某PBX炸药动态力学性能的影响
Effect of Friction Effect on Dynamic Mechanical Performances of a PBX Explosives
摘要
Abstract
Based on the subjected force model of specimen under confined pressure loading of split Hopkinson pressure bar(SHPB), considering the friction effect between sample and sleeve, a correction method of dynamic mechanics performance parameters (dynamic Poisson′s ratio and dynamic Young′s modulus) is established.Taking a cast PBX explosive as an example, the dynamic mechanics parameters of 4 kinds of samples were calculated by conventional method and correction method, respectively and compared.The results show that for cast PBX explosives used in experiments, under the strain rate of 300-2000s-1 ,the error of dynamic mechanical parameter values obtained by conventional method and correction method is less than 5%.The effect of friction effect on dynamic parameters of the PBX can be neglected.关键词
固体力学/浇注PBX炸药/摩擦效应/动态力学参量/分离式霍普金森压杆Key words
solid mechanics/cast PBX explosive/friction effect/dynamic mechanical parameters/split Hopkinson pressure bar (SHPB)分类
军事科技引用本文复制引用
李亮亮,屈可朋,沈飞,肖玮,王辉,何超..摩擦效应对某PBX炸药动态力学性能的影响[J].火炸药学报,2016,39(6):69-73,5.基金项目
国家安全重大基础研究项目 （）
