摘要
为研究铝合金蜂窝夹层板水下爆炸冲击波载荷作用的动态响应及抗冲击性能,利用非药式水下爆炸冲击波加载装置对气背固支5A06铝合金夹层板及具有相同面密度的单层板进行水下冲击波加载试验。利用高速相机结合三维数字散斑技术(DIC)对夹层板后面板动态响应进行实时测量,获得夹层板气背面受水下冲击波作用的动态响应历程及变形毁伤模式,比较分析铝合金蜂窝夹层板抗冲击防护性能。结果表明,较相同面密度的单层板,蜂窝夹层板受水下冲击波载荷作用的芯层压缩能有效减少气背面板的塑性变形,提高夹层结构整体抗冲击性能。
The dynamic responses and blast resistant properties of 5A06 aluminium alloy honeycomb core sandwich panels were investigated under impulsive loading in water. Underwater shock loading experiments for clamped aluminum alloy honeycomb core sandwich plates were conducted with a non-explosive underwater explosion shock loading device. Compared with the experimental results of monolithic panels with equivalent mass per unit area, the effects of sandwich panel structures on anti-shock performance were studied based on the experiments of underwater shock loading. The dynamic deformations of the air back plates with sandwich structure were measured in real-time by using the combined technique of high-speed cameras and 3D digital speckle correlation method （DIC）. The dynamic response histories and failure modes of clamped air-back sandwich plates were observed to compare the blast resistant properties of aluminium alloy honeycomb plates with monolithic plates. The experimental results show that the blast resistant property of honeycomb structure plates can be effectively improved due to the core compression as compared with monolithic panels with equivalent mass per unit area.
出处
《振动与冲击》
EI
CSCD
北大核心
2016年第2期7-11,17,共6页
Journal of Vibration and Shock
基金
国家自然科学基金项目(11372088
51509115)
江苏省高校自然科学研究面上项目资助(15KJB580005)
江苏科技大学学科立项建设项目资助
关键词
固体力学
水下冲击波
蜂窝夹层板
抗冲击性能
数字图像相关方法
solid mechanics
underwater shock wave
sandwich plate with honeycombs
blast resistant properties
digital image correlation
作者简介
任鹏男，博士，讲师，1984年3月生
