超高速撞击双层铝板损伤实验与仿真研究  

Experimental and Numerical Simulation of Damage to Aluminum Dual-wall Plate Structure by Hypervelocity Impact

作　　者：盖芳芳 杨燕华 刘宝良 GAI Fangfang;YANG Yanhua;LIU Baoliang(College of Architectural Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China;First Construction Engineering Co., Ltd., China Construction Second Engineering Bureau Co., Ltd., Chengdu 610043, China)

机构地区：[1]广东石油化工学院建筑工程学院,广东茂名525000 [2]中建二局第一建筑工程有限公司,四川成都610043

出　　处：《广东石油化工学院学报》2021年第3期61-65,共5页Journal of Guangdong University of Petrochemical Technology

基　　金：广东省教育厅特色创新项目(2018KTSCX145);广东省石油化工学院科研基金人才引进项目(2019rc085)。

摘　　要：以航天器双层防护结构为研究对象,通过实验和数值仿真相结合的方法,对铝球弹丸超高速撞击双层铝板防护结构的损伤特性进行了研究,获得了一定的实验数据,并对弹丸直径、撞击速度及防护间距对铝板损伤特性的影响进行了分析。结果表明:增大弹丸直径,前、后板穿孔直径及后板损伤区域直径大致呈线性增大趋势;增大撞击速度,前板穿孔直径先增大后趋于一致,后板损伤模式变得复杂,出现多个穿孔;增大防护间距,能有效地降低后板损伤程度。Combination of experiment with numerical simulation validation is adopted to investigate the damage characteristics of the dual-wall aluminum plate protective structure subjected to normal impact of aluminum spherical projectile.Some experimental data is obtained,and the effects of projectile diameter,impact velocity and Protection distance on the damage characteristics of aluminum plates are analyzed.The results show that as the projectile diameter increases,the perforation diameter of the front and rear plates and the damage area diameter of the rear plate increase linearly.As the impact velocity increases,the perforation diameter of the front plate increases at the beginning and then tends to be consistent.The damage of the rear plate is complex with multiple perforations.The damage can be effectively reduced by increasing the protection distance.

关 键 词：空间碎片 超高速撞击 双层板结构 损伤特性 

分 类 号：O347[理学—固体力学]