定向约束提高炸药作功能力的实验研究

An experimental study of increasing the driving power of explosive with restricted charge

1.
Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, Mianyang 621900, Sichuan, China;
2.
Jining Branch, China Netcom Group Corporation Ltd, Jining 272000, Shandong, China

摘要: 采用任意反射面激光干涉测速技术，通过测量飞片的自由面速度，对比研究了50 mm50 mm的含铝炸药在10 mm厚的钢筒约束条件下和无约束状态时对50 mm1.5 mm钢飞片的作功效能，实验结果表明，采用钢筒约束装置后，炸药对钢飞片的作功效能明显提高，钢飞片的飞行速度提高了34.8％，动能提高了81.7％。
- 爆炸力学 /
- 速度 /
- 干涉 /
- 炸药 /
- 约束
Abstract: A velocity interferometer system for any reflector was used to measure the free surface velocity of steel flyer. The steel flyer was driven by an explosive charge(50 mm50 mm) with two different structure. In one case ,the charge is restricted with a steel tube. In the other, there is no steel tube outside the charge. Experimental results show the restricted charge can accelerate the steel flyer more efficiently. Compared with the naked charge, the restricted charge can increase the velocity of the same steel flyer (50 mm1.5 mm) by 34.8％ and the kinetic energy by 81.7％.
- mechanics of explosive /
- velocity /
- interference /
- explosive /
- restrict