【摘要】 为了解老化对GI-920炸药爆轰性能的影响,分析了GI-920炸药加速老化的机理和效应,根据推导的热分解动力学方程计算了GI-920炸药在70℃和75℃加速老化至不同反应深度时的密度、组成和生成热,进而通过VLWR爆轰程序计算GI-920炸药加速老化后的爆轰参数。结果表明,经过加速老化后,GI-920炸药的密度、爆速和爆压均有所降低。更多还原

【Abstract】 The accelerated aging mechanism and effect of GI-920 explosive were analyzed to understand the effect of aging on detonation performances of GI-920 explosive.Based on the derived thermal decomposition kinetic equation,the density,composition and heat of formation on various decomposition extents of GI-920 explosive were calculated at accelerated aging temperatures of 70℃ and 75℃,respectively.The detonation parameters of GI-920 explosive under various aging conditions were computed by means of the VLWR code.The results show that the density,detonation velocity and detonation pressure were a little decreased after accelerated aging.更多还原