火炸药学报2016，Vol.39Issue(6)：20-25,6.DOI:10.14077/j.issn.1007-7812.2016.06.003
壳体约束强度对温压炸药空中爆炸性能的影响
Influence of Constraint Strength of Shells on the Performance of Thermobaric Explosives Blasting in the Air
摘要
Abstract
To assess the influence of constraint strength of shells on the blasting performance of thermobaric charge, the static blasting experiment in air of solid thermobaric explosive under the constraint strength of different shells was carried out.The numerical simulation of the process was performed by AUTODYN software.The simulated results were compared with the test ones.The results show that the shock wave parameters, shock wave decay rate and after-burning pressure of charges without shell are higher than those of the explosives with shell under the same charging volume condition, and the shock wave parameters, after-burning pressure and shock wave decay rate of charges with aluminum shell are higher than those of charges with steel shells.The shock wave curve shape, peak and impulse obtained by numerical simulation are in good agreement with the experimental results.The arrival time of after-burning peak of explosion shock wave of charges without shell is earlier than that of charges with shells, and the arrival time of after-burning peak of explosion shock wave of charges with aluminum shell is earlier than that of charges with steel shell.The thickness of the shells have a larger impact on initial shock wave overpressure and the metal shells delay the spread of shock wave.关键词
爆炸力学/壳体约束强度/温压炸药/数值模拟/后燃峰/冲击波超压/静爆试验Key words
explosion mechanics/constraint strength of shells/thermobaric explosive/numerical simulation/after-burning peak/shock wave pressure/static blasting experiment分类
军事科技引用本文复制引用
程宇腾,林秋汉,李席,詹高澍,贾辉..壳体约束强度对温压炸药空中爆炸性能的影响[J].火炸药学报,2016,39(6):20-25,6.基金项目
江苏省自然科学基金资助项目(No.BK20150780) （No.BK20150780）
