分步压装装药的安全性分析

介绍了分步压装工艺中装药结构的特点，利用大型冲击模拟加载装置对不同密度的高能炸药药柱进行了安全性模拟实验，并对实验结果进行了理论分析。结果显示，在无缺陷条件下，装药点火阈值较高；在含缺陷条件下，孔隙率越大，点火阈值越高，说明提高装药质量，可以提高装药的抗过载安全性；装药中保持一定的孔隙率可以提高装药的抗过载能力，从而说明了分步压装工艺装药密度分布对装药的抗过载安全性是有利的。

The Safety Analysis of the Step-Press-Loading Charges

The characteristic of charge structure in step-press-loading charge are introduced. The safety simulation test of high explosive with various density is proformed by a big impact loading unit and the experimental results are analyzed theoretically. The result shows that the ignition threshold value of the charge without defect is higher. For charges with defect, the more the void ratio, the higher the value,indicating that a higher quality charge can improve the safety of overload resistance of charge, the specific void ratio can enhance over-load capability ,and the density distribution of step-press-loading is beneficial for safety of overload resistance of charge.