摘要
针对某钻地战斗部垂直侵彻半无限厚素混凝土目标过程的问题,分别采用Forrestal公式和LS-DYNA动力学仿真软件的二维ALE算法对其进行了计算.其中,在LA-DYNA仿真中,混凝土目标采用JHC模型,分别计算了Ma=2和Ma=2.5两种情况下战斗部侵彻混凝土目标的侵彻深度、侵彻时间、负加速度等基本信息.计算结果符合钻地战斗部侵彻混凝土目标的基本规律;同时,对战斗部前期结构设计、装药抗高过载性能设计和引信延期起爆控制等提供了初步的理论依据.
The penetration of EPW warhead into the semi-infinite concrete target is simulated using Forrestal theoretical formula and 2-demension ALE arithmetic in LS-DYNA. Using a JHC model in simulation, the basic information such as the penetration depth, penetration time, overload are computed under conditions of Ma2 and Ma2.5 respectively. These computation outcomes fit very well with the general principle of penetrating concrete target, and provide a theoretical base for prelimiuary design of warhead structure, the performance of charge against high-overload and the control of fuze-delay detonation.
出处
《战术导弹技术》
北大核心
2008年第6期84-88,共5页
Tactical Missile Technology
