摘要
采用Ф25口径弹道滑膛炮发射7．62mm步枪弹头对经过某热处理工艺的4．1mm厚30CrMnSiA钢板进行了正冲击弹道破坏效应试验。冲击速度为600～890m／s。随着冲击速度的增加，通过试验分别观察到靶板的破坏模式依次经历隆起和盘形凹陷的塑性变形、花瓣型破坏以及冲塞型破坏3种模式。弹道极限速度在662m／s左右。试验结果分析表明，对靶板的冲击效应主要体现在弹头内强度较高的钢芯上，但当冲击速度提高到一定程度之后，被甲的质量效应开始表现出来，形成继钢芯冲塞靶板之后的二次冲塞；冲击之后的弹头钢芯头部镦粗，且其镦粗程度随弹头冲击速度的提高逐渐降低，一般不发生质量侵蚀现象。
The ballistic behavior of a special heat treating 30CrMnSiA 4.1 mm thick steel plates against 7.62 mm rifle bullets was investigated by 25 mm caliber artillery experimental equipment under normal impact condition. The velocities covered ranges from 600 m/s to 890 m/s, with the increasing velocity. Three modes of penetration for the special steel plates can be observed respectively as bulging, disc-shaped plastic deformation and gross crack, petal perforation and plugging perforation process. The ballistic velocity limit of perforation is approximately 662m/s. The normal impact effect of the bullet is mainly exhibited by the bullet steel core with higher material strength. However, when the impact velocity is bigger than a threshold, the mass effect of the bullet jacket starts to appear, and the jacket of bullet cuts the target sequentially after the steel core Taylor impact. Obvious mushroom shape of the steel core appears after impacting, and the magnitude of the plastic deformation decreases with increasing impact velocity, usually no mass erosion of most steel cores can be observed.
出处
《解放军理工大学学报（自然科学版）》
EI
2007年第6期619-625,共7页
Journal of PLA University of Science and Technology(Natural Science Edition)
基金
国家教育部NCET资助项目
