蜂窝铝夹芯板动态冲击试验研究  

IMPACT TEST ON ALUMINUM HONEYCOMB SANDWICH PANELS

作　　者：辛亚军[1] 张立伟 刘小蛮[1] 程树良[1] 李慧剑[1] XIN YaJun;ZHANG LiWei;LIU XiaoMan;CHENG ShuLiang;LI HuiJian(College of Civil Engineering and Mechanics,Yanshan University,Qinhuangdao 066004,Chin)

机构地区：[1]燕山大学建筑工程与力学学院,秦皇岛066004

出　　处：《机械强度》2018年第4期802-809,共8页Journal of Mechanical Strength

基　　金：河北省自然科学基金项目(E2013203183);燕山大学青年教师自主研究计划(15LGA011)资助~~

摘　　要：采用落锤低速冲击试验测试蜂窝铝夹芯板的动态力学性能,研究了其破坏形态、破坏过程和典型荷载-位移曲线,分析了冲击速度和面板厚度两个因素对夹芯板极限冲击承载力和吸能量的影响,并和准静态试验下相应面板厚度的夹芯板进行力学性能对比。试验结果表明,蜂窝铝夹芯板的典型冲击荷载-位移曲线呈现出五个主要阶段,在不同冲击速度下夹芯板的极限冲击承载力和吸能量基本一致,而随着面板厚度的增加,夹芯板的极限冲击承载力和吸能量随之增加,三种不同面板厚度的夹芯板在落锤低速冲击作用下的极限冲击承载力和吸能量比在准静态作用下提高。The dynamic mechanical properties of aluminum honeycomb sandwich panels were investigated under low velocity drop weight impact test.The failure behaviors,destruction process and typical force-displacement curves were analyzed.The impact velocities and panel thickness have influence on ultimate impact force and energy absorption was analyzed respectively.The mechanical properties of sandwich panels with corresponding panel thickness under quasi-static test were compared.The tests result show that typical impact load-displacement curve of aluminum honeycomb sandwich panels presents five stages.The ultimate impact force and energy absorption of sandwich panels under different impact velocities are basically identical.With the panel thickness increasing,ultimate impact force and energy absorption of sandwich panels increase.Compared with quasi-static experiment,the ultimate impact force and energy absorption of sandwich panels with three kinds surface thickness under low velocity drop weight impact tests are improved.

关 键 词：蜂窝铝 夹芯板 冲击速度 面板厚度 极限冲击承载力 吸能量 

分 类 号：TG146[一般工业技术—材料科学与工程]