蜂窝点阵-陶瓷复合装甲在联合载荷下的动态力学行为  

Dynamic mechanical behavior of honeycomb lattice-ceramic composite armor under combined load

作　　者：赵中南 韩宾[2] 李朗 张钱城[1] 卢天健 ZHAO Zhongnan;HAN Bin;LI Lang;ZHANG Qiancheng;LU Tianjian(State Key Laboratory for Strength and Vibration of Mechanical Structures,Xi’an Jiao Tong University,Xi’an 710049,China;School of Mechanical Engineering,Xi’an Jiao Tong University,Xi’an 710049,China;State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]西安交通大学机械结构强度与振动国家重点实验室,西安710049 [2]西安交通大学机械工程学院,西安710049 [3]南京航空航天大学机械结构力学及控制国家重点实验室,南京210016

出　　处：《振动与冲击》2022年第9期227-236,共10页Journal of Vibration and Shock

基　　金：国家自然科学基金(11972185,11802221)。

摘　　要：为了探究具备抗多发弹打击的蜂窝点阵-陶瓷复合装甲在冲击波与破片联合载荷下的防护性能,改善当前防护装甲基于破片或爆炸冲击波单一载荷开展结构设计的不足。通过泡沫铝-弹丸复合弹模拟联合载荷,采用有限元模拟,研究蜂窝点阵-陶瓷复合装甲在联合载荷作用下的结构动态响应与毁伤机理,明确速度差和预变形两种协同作用机制;进一步研究联合载荷中爆炸冲击波与破片抵达先后顺序与抵达时间差对复合装甲防护性能的影响。最终,进行参数化研究,讨论蜂窝点阵-陶瓷复合装甲中,不同子结构关键几何参数对防护性能的影响规律,评估不同子结构的防护贡献,为最优防护性能设计提供指导。Here,to explore protection performance of honeycomb lattice-ceramic composite armor capable of resisting multi-bullet attack under the combined load of shock wave and fragments,and improve deficiencies in structural design of current armor based on single load of fragments or blast shock wave,simulating the combined load with foam aluminum-projectile composite shell,adopting the finite element simulation method,structural dynamic responses and damage mechanism of honeycomb lattice-ceramic composite armor under combined load were studied to definite two synergistic mechanisms of velocity difference and pre-deformation.Furthermore,effects of early or late arrival orders and arrival time difference of blast shock wave and fragments in the combined load on protection performance of composite armor were studied.Finally,the parameterization study was performed,influence laws of key geometric parameters of different substructures in the composite armor on protection performance were discussed,and protection contributions of different substructures were evaluated to provide a guidance for the optimal protection performance design.

关 键 词：陶瓷复合装甲 蜂窝点阵 联合载荷 防护能力 

分 类 号：TH212[机械工程—机械制造及自动化] TH213.3