仿生结构陶瓷金属复合板抗冲击性能数值研究  

Numerical study on impact resistance of bionic structure metal composite plate

作　　者：刘亚洵 梅海 刘齐文[1] 刘立胜[1] LIU Yaxun;MEI Hai;LIU Qiwen;LIU Lisheng(Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics,Wuhan University of Technology,430070 Wuhan,China)

机构地区：[1]武汉理工大学新材料力学理论与应用湖北省重点实验室,武汉430070

出　　处：《应用力学学报》2023年第5期1034-1042,共9页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金资助项目(No.11972267,11802214);中央高校基本科研业务资助项目(No.2020lll031GX)。

摘　　要：复杂组合形式的仿生结构往往具有比单一结构更为优异的性能,为了探索仿生结构陶瓷金属复合板的抗冲击性能,建立了陶瓷金属复合板模型,考虑了砖砌式与龟甲式仿生结构,分别模拟了传统陶瓷金属复合板与仿生结构陶瓷金属复合板受弹体高速冲击的过程。通过对比侵彻各结构复合板后的弹体残余速度,得到了仿生结构陶瓷金属复合板在抗冲击性能上要优于传统陶瓷金属复合板的结论,并进一步通过对比分析了侵彻过程中的弹体剩余速度、陶瓷板损伤情况以及各层板能量损耗结果,分析结果表明:仿生结构较传统结构有局部更为严重的裂纹损伤,并且底层陶瓷板具有更大的陶瓷损伤锥角;仿生结构较传统结构的各层板耗散了更多的能量并且延长了弹体的有效侵彻时间;黏接层能够进一步抑制仿生结构的裂纹扩展和损伤范围。Bionic structure with complex combination form tends to have more excellent performance than single structure.In order to explore the impact resistance of bionic structure ceramic/metal composite plate,ceramic metal composite plate model is presented in this paper.Considering the brick type and tortoise shell type bionic structure,then the process of high-speed impact of the composite armor with different structures is simulated.By comparing the residual velocity of the projectile of composite armor,it is found that the impact resistance of the bionic structure ceramic-metal composite armor is better than that of the traditional ceramic-metal composite armor.We analyze the residual velocity of projectile,the damage of ceramic plates and the energy absorption of each layer in the process of penetration.Results show that the bionic structure has more severe local crack damage and the bottom ceramic plate has a larger ceramic damage cone angle than the traditional structure.The biomimetic structure dissipates more energy than the traditional structure and extends the effective penetration time of the projectile,and adhesive layer can further restrain the crack growth and damage range of the biomimetic structure.

关 键 词：陶瓷金属复合板 仿生结构 抗弹性能 陶瓷破碎锥 

分 类 号：O347.3[理学—固体力学]