摘要
在整体型大口径 FAE 战斗部的结构设计中,提高壳体强度是设计工作中面临的新问题。采用 Lagrange坐标下的有限元方法,建立了整体型 FAE 战斗部装置的数值模型。应用 DYNA3D 有限元程序模拟了不同厚度壳体的 FAE 装置在中心分散药的爆炸载荷的驱动下膨胀、破裂的作用过程。研究了壳体厚度对圆柱壳体膨胀破裂特性及其对燃料分散的作用规律,为整体型大口径 FAE 战斗部的结构设计提供了设计依据。
The thickness of cylindrical shells is a very important part in the FAE warhead structure design. By using the transient dynamic explicit finite element analysis software LS-DYNA,the dynamic fracture of cylindrical shells of the FAE device which has several scales of shell's thickness,and same fundamental structure dimension subject to internal explosive loading was simulated.The effect of the scales of cylindri- cal shell's thickness on the dynamic fracture of shells was analyzed as well as on the dispersing of the fuel through the simulation analysis.This result will assist to the FAE warhead structure design.
出处
《弹箭与制导学报》
CSCD
北大核心
2003年第S4期110-112,共3页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
国家十五重点预研项目(40404050201)
关键词
FAE
壳体厚度
DYNA-3D
数值模拟
FAE device
the thickness of cylindrical shells
DYNA-3D
numerical simulation
