炸药装药在后座冲击下的动态响应实验研究

目的　研究炸药装药的力学性质对装药发射安全性的影响． 方法　利用小型后座模拟试验装置对相同密度条件下的Ｂ炸药和改性Ｂ炸药装药在相同后座加载条件下的应力和应力率响应进行了测试． 结果　试验显示由于改性Ｂ装药弹性模量相对Ｂ炸药装药降低，在同样后座载荷下改性Ｂ装药中的应力及应力率明显低于Ｂ炸药装药． 结论　得出了降低装药的弹性模量有利于提高装药发射安全性的估计．

Experimental Study of Dynamic Response of Explosive Charge Subjected to Setback Impact

Aim To study the effect of mechanical property of explosive charge on launching safety of charge. Methods The stress and stress rate respone of Comp B and modified Comp B explosive charges at the same density subjected to the same setbakc loading were tested by a mini setbak simulator. Results The tests show that the stress and stress rate of modified Comp B charges are lower than those of Comp B charges subjected to same loading because of the decreasing of Yonug's modulus of modified Comp B charge. Conclusion The evaluation that decreasing the Young's modulus of explosive can improve the launching safety of explosive charge is advanced.