弹体斜侵彻混凝土靶的实验研究及其数值模拟  

Experimental study and numerical simulation of projectile obliquely penetrating into concrete target

作　　者：薛建锋[1] 沈培辉[1] 王晓鸣[1] 

机构地区：[1]南京理工大学智能弹药技术国防重点学科实验室,江苏南京210094

出　　处：《爆炸与冲击》2017年第3期536-543,共8页Explosion and Shock Waves

基　　金：国家重点基础研究发展计划(973计划)项目(61314302)

摘　　要：以弹体斜侵彻混凝土的弹道特性为研究内容,通过侵彻实验与数值模拟得到了不同速度下的侵彻深度、开坑尺寸、偏转角等参数,实验结果与模拟结果吻合较好。研究结果表明:倾角对开坑深度和开坑形状影响很大;倾角越大,对侵彻深度和偏转角的影响越明显,弹体偏转角随着速度的增大呈现减小的趋势;当倾角增至一定角度后发生跳弹现象,据此得到跳弹极限角与倾角、侵彻速度的关系。The ballistic characteristics of the projectile obliquely penetrating into the concrete target were investigated, with such data as the penetration depth, crater depth and diameter, deflection an- gle obtained via the experiments and simulation calculation. The results from simulation agree well with those from the experiments. The results show that the oblique angle has great influence on the crater zone. The greater the oblique angle, the greater the projectile＇s deflection; the greater the im- pact velocity, the less the influence of the ballistic deflection angle; and the ricochet occurs when the oblique angle increases to a certain degree. Thus the relationship was identified between the ricochet angle and the oblique angle and the penetration velocity.

关 键 词：弹体 斜侵彻 混凝土靶 弹道特性 偏转角 

分 类 号：O385[理学—流体力学]