Abstract: A method for predicting the storage life of solid propellant grain by cumulative damage was developed based on heat ageing experiment on initial void content rate of propellant grain,and its application was discussed.A new method which can accurately,economically and conveniently predict the storage life of solid propillant grain was prosoed

Key words: Solid propellant;Storage life;Heat ageing

摘要： 通过对固体推进剂药柱进行初始气孔率热老化试验研究，探讨了用累积损伤方法来预测药柱贮存寿命， 提出了一种准确、经济、方便地提前预测药柱贮存寿命的新方法和新技术

关键词: 固体推进剂;贮存寿命;热老化