等能量低速冲击下泡沫铝夹芯板动态力学行为研究  

Investigation on Dynamic Behavior of Aluminium Foam Sandwich Plate Under Low Velocity Impact with Identical Energy

作　　者：郭开岭 许博方 张梗林 穆梦颖 朱凌[2] GUO Kailing;XU Bofang;ZHANG Genglin;MU Mengying;ZHU Ling(Key Laboralory of High Performance Ship Technology(Wuhan Universilry of Tclhnology),Ministryof Education,Wuhan 430063,China;School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China;Marine Design and Research Institute of China,Shanghai 200001,China)

机构地区：[1]高性能船舶技术教育部重点实验室(武汉理工大学),武汉430063 [2]武汉理工大学船海与能源动力工程学院,武汉430063 [3]中国船舶及海洋工程设计研究院,上海200001

出　　处：《武汉理工大学学报(交通科学与工程版)》2025年第2期298-306,共9页Journal of Wuhan University of Technology(Transportation Science & Engineering)

基　　金：国家自然科学基金(12202328,12172265)。

摘　　要：利用ABAQUS建立了泡沫铝夹芯板冲击数值仿真模型,分析了泡沫铝夹芯板动态冲击响应特性,并将仿真结果与冲击实验的结果进行了对比.在验证了数值方法的准确性之后,在保持冲击能量相同的前提下,研究了速度-质量组合方式对泡沫铝夹芯板冲击力峰值、面板最终挠度、冲击持续时间等动态响应的影响规律.结果表明:在低速冲击范围内,冲击速度对泡沫铝夹芯板加卸载过程、冲击力峰值、最终挠度等结果量的影响非常小,在工程应用中基本可以忽略;然而,冲击速度对泡沫铝夹芯板的冲击过程有较大的影响,不同的速度-质量组合下的冲击力时程曲线、冲击持续时间等都有显著差异,冲击持续时间随初始冲击速度的增大呈指数形式减小.在此基础之上,利用数值仿真进一步研究了冲头直径和冲头形状等对泡沫铝夹芯结构动态响应的影响机理.The numerical simulation model of aluminum foam sandwich panel was established by ABAQUS,and the dynamic impact response characteristics of aluminum foam sandwich panel were analyzed,and the simulation results were compared with the impact test results.After verifying the accuracy of the numerical method,under the premise of keeping the same impact energy,the influence of speed-mass combination mode on the dynamic response of aluminum foam sandwich panel,such as the peak impact force,the final deflection of the panel and the impact duration,was studied.The re-sults show that in the range of low-speed impact,the impact speed has little influence on the loading and unloading process,peak impact force and final deflection of aluminum foam sandwich panels,which can be basically ignored in engineering applications.However,the impact speed has a great in-fluence on the impact process of aluminum foam sandwich panels.The impact time-history curve and impact duration are significantly different under different speed-mass combinations,and the impact duration decreases exponentially with the increase of initial impact speed.On this basis,the influence mechanism of punch diameter and punch shape on the dynamic response of aluminum foam sandwich structure is further studied by numerical simulation.

关 键 词：泡沫铝夹芯板 动态响应 等能量冲击 速度影响 冲头形状 冲头直径 

分 类 号：U661.72[交通运输工程—船舶及航道工程]