助推钻地弹对混凝土目标侵彻效应的数值模拟

为设计助推钻地弹选择合适的助推方案,采用LS-DYNA程序进行了三维数值模拟研究。通过将动能弹侵彻混凝土数值模拟的结果与试验数据进行对比,确定了合理的有限元仿真模型,选取了合适的材料模型和参数。结合某结构助推钻地弹的研制工作,对助推钻地弹侵彻混凝土的效应进行了数值模拟,与试验数据进行比较,得出数值模拟能够较好地反映助推钻地弹对混凝土目标的侵彻效应。通过对各种助推方案的数值模拟,得出了选择助推方案的一般原则,为新型钻地弹的研制提供了指导。

Numerical Analysis of Earth Penetrating Weapon with Boosting Penetration Effect into Concrete Targets

In order to choose an appropriate boosting scheme in the design of Earth Penetrating Weapon with boosting,the penetration effect was simulated with LS-DYNA3D.Through comparing the numerical simulation result of the EPW into concrete targets with the data which was measured in the experiment,it was showed that the model which was built in finite element simulation was reasonable and the material model which was chose was suitable.Then combining the research of the construction EPW with boosting,the penetration effect of the EPW with boosting into concrete targets was simulated.Through comparing the experimental data with the simulation result,it was showed that the numerical analysis tallied closely the penetration effect of the EPW with boosting into concrete targets,and it deduced the general principle of the boosting scheme choosing by the simulation of each boosting scheme.From the foregoing,the research could be used to guide the design of the new EPW with boosting.