药型罩曲率半径对LEFP参数影响的数值模拟研究  

Numerical simulation on influence of liner curvature radius on parameters of liner explosive formation penetration

作　　者：朱生盛[1] 方维凤[1] 王余奎[1] 

机构地区：[1]徐州空军学院,江苏徐州221000

出　　处：《兵器材料科学与工程》2011年第2期55-57,共3页Ordnance Material Science and Engineering

摘　　要：采用有限元动力分析软件LS-DYNA建立三维数值模型,通过数值模拟和试验相比较的方法,分析LEFP的成型过程,在此基础上比较不同曲率半径下LEFP在各时刻的成型形态,并分析药型罩曲率半径对LEFP成型速度的影响,结果表明,药型罩曲率半径越小弹丸压合的越密实,随药型罩曲率半径的增大,弹丸密实度降低,成型速度随之增大,但增加的幅度不是太大。LS-DYNA finite element analysis software was adopted to constitute three-dimensional numerical model.Comparison of numerical simulation results with experimental ones was made to study the process of LEFP formation.The configuration of LEFP at different time and the influence of liner curvature radius on LEFP final speed were analyzed.The results show that LEFP is compacter when liner curvature radius is small.With curvature radius increasing,the degree of compactness becomes small,and LEFP final speed begins to increase,but the increasing extent is not too big.

关 键 词：LEFP 数值模拟 药型罩 曲率半径 

分 类 号：TJ410.33[兵器科学与技术—火炮、自动武器与弹药工程]