【摘要】 金属材料具有优异的抗侵彻性能。通过对金属靶板进行优化设计以提高其抗侵彻能力对各工程领域有重要意义。本文采用三维动态数值仿真的方法，对圆柱形平头弹丸冲击多层钢板问题进行了仿真分析。通过已发表文献的实验结果验证了本文仿真方法的有效性。讨论了多层金属靶板分层数、各分层厚度比对靶板抗侵彻性能的影响，分析了靶板的失效机理。研究结果表明，靶板的分层设计对金属靶板的抗侵彻性能有明显影响。通过研究给出了本文冲击载荷下的多层靶板最优厚度比。更多还原

【Abstract】 Metallic materials have excellent penetration resistance. To improve the anti penetration capability of the metallic target plate, the optimization design of target plate is of great significance in various engineering fields. In this paper, the dynamic responses of the multi-layer steel plates were analyzed by 3D dynamic numerical simulation methods under the impact of the cylindrical flat headed projectile. The numerical simulation method used in this paper was verified by experimental results of published literature. The influences of the layer number, the thickness ratio of layer on the penetration resistance of the metal target plate were discussed. The failure mechanism of the target plate was studied. The research results show that the layered design of the metallic target and the spacing setting between layers can effect the penetration resistance of the metal target plate. The optimal thickness ratio for resisting impact loads was also determined.更多还原