小口径药型罩爆炸成型弹丸设计与多层钢靶侵彻实验

Design of Explosively Formed Projectile Liner with Small Radius and Experiment of Penetrating Multi-Layer Steel Target

针对侵彻多层间隔钢靶的要求,开展了爆炸成型弹丸(EFP)实验装置设计和侵彻实验研究。采用曲面变厚度药型罩设计方法,设计了药型罩口径为60mm的压拢型EFP实验装置,并进行了侵彻多层钢靶实验,采用闪光X射线技术,测得了EFP的形状和速度。实验结果表明:EFP具有速度适中、密实性良好、长径比较小的特点,在贯穿多层钢靶过程中性能稳定,未发生碎裂现象,达到了穿透6层厚度为6mm、间距为2m的钢靶的侵彻效果。

For special requirements of penetrating multi-layer steel target, a design of explosively formed projectile （EFP） and its experimental study have been carried out. A compressed EFP assem-bly with a 60 mm diameter of liner has been designed using the curved variable thickness liner design. The shape and velocity of the EFP when penetrating through the multi-layer steel target were meas-ured with X-ray photography. According to the experimental results, the EFP shows the characteristics of moderate speed, good compactness and small length-radius ratio. In the process of penetrating multi-layer steel target, the EFP has stable performance, and smash phenomenon does not exist. The experi-mental results show that it can penetrate through the six-layer steel target with thickness of 6 mm and spacing of 2 m.