Xiaokai Fei Hongzhi Zhao Yan Cheng Jia Tian Research on the Impact Calculation of Penetrators on Typical Metal Protective Structures Based on Unity3D. 42-46 2024 ICCEIC https://doi.org/10.1109/ICCEIC64099.2024.10775765 conf/icceic/2024 db/conf/icceic/icceic2024.html#FeiZCT24