LEFP成型及侵彻过程的数值模拟  

Numerical Simulation of LEFP Forming and Penetrating Steel Target

作　　者：朱生盛[1] 方维凤[1] 刘宏伟[1] 及志民[1] 

机构地区：[1]徐州空军学院机场工程系,江苏徐州221000

出　　处：《兵工自动化》2011年第5期76-79,共4页Ordnance Industry Automation

摘　　要：为反映线性爆炸成型侵彻体(liner explosive formation penetration,LEFP)成型及侵彻过程中各参数的变化规律,合理设计LEFP装药结构参数,利用LS-DYNA 3D有限元动力分析软件,采用任意拉格朗日-欧拉(ALE)算法,建立包括炸药、药型罩、壳体、空气、靶板在内的三维数值模型,在分析线性爆炸成型侵彻体成型过程的基础上,通过数值模拟和实验进一步分析了LEFP对45#有限钢靶板的侵彻效应。结果表明,该模拟方法正确,能为LEFP的设计提供参考。In order to reflect transforming rules of parameter in the course of the forming and penetration of LEFP,through reasonable designing of parameters of LEFP,use LS-DYNA 3D finite element analysis software and the arbitrary Lagrangian-Eulerian（ALE） to establish three-dimensional numerical model including dynamite,liner,cover and air.Based on analyzing the process of liner explosive formation penetration（LEFP） formation,research on 45 steel target penetrated by LEFP,numerical simulation was in accordance with the experiment,the result shows that numerical analysis is reasonable.It could provide the reference to design LEFP.

关 键 词：LS-DYNA 3D LEFP ALE算法 成型 侵彻 

分 类 号：N945.12[自然科学总论—系统科学] TP301.6[自动化与计算机技术—计算机系统结构]