摘要
对某聚能装药射流侵彻靶板的过程进行了数值模拟 ,得出其碰撞点附近应力分布与传统理论相符 ,侵彻深度与实验结果及工程计算结果基本相符 ;分别对该聚能装药侵彻连续靶和间隔靶的过程进行了数值模拟 ,数值模拟结果显示间隔靶的侵彻深度明显低于连续靶的侵彻深度 ,这说明侵彻开坑阶段的能耗侵深比远大于准定常阶段。为了验证间隔靶对射流侵彻的影响 ,用另一聚能装药分别对连续靶和间隔靶进行了侵彻实验 ,并排除了炸高的影响。实验结果也表明 ,间隔靶对射流侵彻的确存在着不利影响。
This paper presents the effects of jet penetrating into disconnected targets by means of numerical simulation and experiments. By comparing penetration depth of disconnected targets with that of connected targets, it was found that there are disadvantage effects for penetrating disconnected targets. By analyzing the results of numerical simulation and experiments, there are two primary adverse factors for penetrating, one is the added reconstruct of stress section, the other is the splash of jet between targets. Based on data gained from numerical simulation and experiments, the conventional equation for calculating penetration depth was improved.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2002年第4期381-386,共6页
Explosion and Shock Waves
关键词
数值模拟
射流
侵彻深度
连续靶
间隔靶
numerical simulation
jet
penetration depth
connected target
disconnected target
