典型壁板结构爆炸冲击实验与仿真研究  

Experimental and simulation study on explosion impact of a typical wall panel structure

作　　者：周佳煜 王彬文[1,2] 张宇 郭玉佩 李达诚 白春玉[1,2] ZHOU Jiayu;WANG Binwen;ZHANG Yu;GUO Yupei;LI Dacheng;BAI Chunyu(National Key Laboratory of Strength and Structural Integrity,Aircraft Strength Research Institute of China,Xi’an 710065,China;Aviation Key Laboratory of Science and Technology on Structural Impact Dynamics,Aircraft Strength Research Institute of China,Xi’an 710065,China)

机构地区：[1]中国飞机强度研究所强度与结构完整性全国重点实验室,西安710065 [2]中国飞机强度研究所结构冲击动力学航空科技重点实验室,西安710065

出　　处：《航空工程进展》2024年第5期86-96,共11页Advances in Aeronautical Science and Engineering

摘　　要：空空导弹战斗部爆炸产生的爆炸冲击波毁伤源对飞机蒙皮结构的损伤效果受多种因素影响,作用机理较为复杂,因此冲击波对飞机蒙皮结构的毁伤评估需要大量的实验和计算样本支撑。本文设计并进行铝合金加筋平板静爆实验,分析固支加筋平板在冲击波加载下的动态响应和变形规律;采用有限元分析软件LS-DYNA对爆炸冲击下的结构响应进行仿真分析,通过对比仿真结果与实验结果对数值仿真模型的准确性进行验证。结果表明:孔洞面积占该形式加筋平板面积大于1‰时,靶板更容易发生以固支边界撕裂为主要形式的拉伸失效,增大孔径或增加孔的数量都有提高孔间贯穿损伤的风险;同爆距下爆炸物与目标迎爆面的夹角越大,靶板的变形程度越严重,夹角从30°增大至60°时目标挠度可增加30%以上。The damage effect of the explosion shock wave generated by the explosion of the air to air missile war-head on the aircraft skin structure is influenced by various factors,and the function mechanism is relatively com-plex,so that a large number of experimental and computational samples are required to evaluate the damage of shock waves to aircraft skin structures accurately.The static explosion experiments of aluminum alloy reinforced plates with fixed supports are performed,and their dynamic response and deformation patterns under shock wave loading are analyzed.The finite element analysis software LS-DYNA is used to simulate the structural response un-der explosive impact,and the simulation model is validated by comparing with the experimental results.The results show that the target plate is prone to tensile failure with tearing at the fixed boundary when the hole area ratio of the reinforced plate exceeds 1‰,and increasing the hole diameter or the number of holes enhances the risk of perfora-tion damage between holes.The target deformation increases with the incident angle of explosion,and the target deflection can increase by more than 30%when the angle increases from 30°to 60°at a constant explosion distance.

关 键 词：爆炸冲击波 壁板结构 动态响应 数值模拟 实验研究 

分 类 号：V214.4[航空宇航科学与技术—航空宇航推进理论与工程]