基于FEM-SPH耦合算法的子弹侵彻复合装甲数值模拟  

Numerical Simulation of Bullet Penetration into Composite Armor Based on FEM-SPH Coupling Algorithm

作　　者：李福强 史彦飞 黄敬如 刘润华 赵亮 Li Fuqiang;Shi Yanfei;Huang Jingru;Liu Runhua;Zhao Liang(College of Coast Guard Academy,Naval Aviation University,Yantai 264001,China;No.92154 Unit of PLA,Yantai 264000,China)

机构地区：[1]海军航空大学岸防兵学院,山东烟台264001 [2]中国人民解放军92154部队,山东烟台264000

出　　处：《兵工自动化》2025年第2期74-78,共5页Ordnance Industry Automation

摘　　要：为研究7.62 mm穿甲子弹对陶瓷/芳纶/超高分子量聚乙烯(ultra-high molecular weight polyethylene,PE-UHMW)复合装甲的毁伤效应,对子弹侵彻复合装甲问题进行模拟研究。通过分析毁伤效应中陶瓷锥的形成、裂纹扩展和破碎飞溅过程,分析弹体对芳纶和PE-UHMW的破坏模式,并研究不同的弹速对复合装甲毁伤效能的影响规律。结果表明:FEM-SPH耦合算法可很好地模拟弹体侵彻陶瓷/芳纶/PE-UHMW复合装甲的过程;在弹速小于弹道极限时,复合装甲吸能和背板最大变形值都随着弹速的增大而增大;当弹速大于弹道极限时,复合装甲吸能增加的速率开始下降。In order to study the damage effect of 7.62 mm armor-piercing bullet on ceramic/aramid/ultra-high molecular weight polyethylene(PE-UHMW)composite armor,the penetration of the bullet into composite armor was simulated.By analyzing the formation,crack propagation and splashing process of the ceramic cone in the damage effect,the damage mode of the projectile body to the aramid fiber and PE-UHMW was analyzed,and the influence of different projectile velocities on the damage effectiveness of the composite armor was studied.The results show that the FEM-SPH coupling algorithm can well simulate the process of projectile penetrating ceramic/aramid/PE-UHMW composite armor.When the projectile velocity is less than the ballistic limit,the energy absorption and the maximum deformation of the back plate of the composite armor increase with the increase of the projectile velocity.When the projectile velocity is greater than the ballistic limit,the rate of energy absorption of the composite armor begins to decrease.

关 键 词：陶瓷/芳纶/超高分子量聚乙烯 复合装甲 FEM-SPH耦合算法 陶瓷锥 毁伤效能 

分 类 号：TJ413[兵器科学与技术—火炮、自动武器与弹药工程]