可变形定向破片战斗部模型试验和数值模拟研究

基于可变形定向破片战斗部的作用原理,设计了试验结构模型,并对其进行了静爆试验研究。根据试验结果,建立了有限元分析模型,利用LS-DYNA程序对可变形定向战斗部变形过程以及破片的飞散过程进行了数值模拟。结果表明,在目标方向破片密度和速度都有较大幅度增益,数值模拟与试验结果比较吻合。

A Study of Simulation and Experiment of Target-directed Deformable Warhead Model

According to the theory of target-directed deformable warhead,a structural model was designed and an experiment of explosion was carried out.Based on the experiment results,the finite element analytic model was established.By utilizing the code LS-DYNA,the deforming process of the deformable warhead and the projectile process of its fragments were numerically simulated.The results of simulation and experiment show that the density and velocity of the fragments are greatly enhanced in the target direction and the simulation is consistent with experiment.