串联EFP数值模拟研究：药型罩壁厚优化探究

孙加肖，杨丽君

（中国兵器工业第五九研究所，重庆　400039）

摘　要：通过改变药型罩壁厚的方法，即在中间厚边缘薄药型罩前加装一个边缘厚、罩顶薄的药型罩，可形成向后翻转型的串联EFP。通过采用ANSYS／LS-DYNA 软件对串联EFP 的成型过程和药型罩材料及壁厚对EFP 的影响进行仿真分析可以得出：（1）通过加装一个边缘厚、罩顶薄的药型罩，可形成串联EFP；（2）当加装的变壁厚罩边缘厚度为1.5 mm，罩顶厚度为0.5 mm，且药型罩材料选用金属铜时，串联EFP 的成型效果最好。

关键词：药型罩；加装；变壁厚；串联EFP

中图分类号：TJ413.+2　文献标志码：A

作者简介：孙加肖（1990—），男，助理工程师，E-mail：1275429491＠qq.com。(www.xing528.com)

Numerical simulation study on tandem EFP formation of variable thickness liner

SUN Jiaxiao，YANG Lijun

（The 59 Research Institute of China Weapon Industry，Chong Qing 400039，China）

Abstract：Based on the method that changing thickness of liner which is putting another variable thickness liner on wrapping variable thickness liner，this warhead can form tandem EFP.Numerical simulation on the process of penetrations and the influence on the configurations of two penetrations about different materials and thickness is carried out by using ANSYS／LS-DYNA finite element software.The research shows that：（1）When the variable thickness liner is installed on the wrapping variable thickness liner，the warhead can form tandem EFP.（2）When the edge thickness is 0.5 mm，the edge thickness is 1.5 mm and the material is copper，the effect of tandem EFP is best.

Keywords：liner；add；variable thickness；tandem EFP