典型加筋壁板近爆距冲击波-破片毁伤研究  

Study on blast-fragment damage of typical stiffened panel under close range explosion

作　　者：周佳煜 王彬文[1] 张宇 李达诚 白春玉[1] 杨强[1] ZHOU Jiayu;WANG Binwen;ZHANG Yu;LI Dacheng;BAI Chunyu;YANG Qiang(Aircraft Strength Research Institute of China,Xi’an 710065,China)

机构地区：[1]中国飞机强度研究所,西安710065

出　　处：《兵器装备工程学报》2024年第10期44-52,共9页Journal of Ordnance Equipment Engineering

摘　　要：为了研究Ω型加筋壁板在近距离爆炸冲击下的毁伤特性和破片—冲击波联合作用规律,通过爆炸冲击实验及数值仿真,研究了冲击波和破片单独作用、联合作用和不同先后顺序作用下靶板的损伤差异。研究结果表明:近距爆炸产生联合作用时,冲击波和破片互为干扰,破片动能相比破片单一作用时最大降幅可达10.1%,靶板最大挠度相比冲击波单一作用时可降低25.8%;对于Ω型加筋板,仅有破片打击作用时形变量较小,但破片造成的穿孔损伤将极大降低靶板抵抗冲击波作用的能力。当冲击波作用于穿孔损伤后的靶板时,靶板最大挠度相比冲击波单一作用时可增大96.5%。研究结果可为防护结构设计提供参考。In order to study the damage characteristics ofΩshaped stiffened panels under close range explosion and the combined effect of fragments and shock wave,the damage differences of target panels under single action,combined action and sequential action of shock wave and fragments were studied through prefabricated fragment explosion experiment and a validated finite element model.The results demonstrate that the shock wave and fragments interfered with each other in the vicinity of explosion field,the maximum reduction in fragment kinetic energy can reach 10.1%compared to when there is no shock wave,and the maximum deflection of the target panel is 30.8%lower than when there is no fragment.ForΩshaped stiffened panels,the deformation is relatively small if only under the impact of fragments,however,the perforation damage triggered by fragments will greatly reduce the ability of the panels to resist the deformation caused by shock wave.When the shock wave impacts the target panel which has been perforated,the maximum deflection of the target panel can increase by 96.5%compared to which only attacked by shock wave.The research results can provide reference for the design of protective structures.

关 键 词：破片冲击 爆炸冲击波 壁板结构 数值模拟 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]