泡沫铝夹芯板水下抗爆性能的实验和数值模拟  

Experimental and numerical study on underwater explosion resistance of aluminum foam sandwich

作　　者：朱芮锋 曹卓坤[1,2] 张志刚 Zhu Ruifeng;Cao Zhuokun;Zhang Zhigang(Northeastern University,Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education),Shenyang 110819,China;Northeastern University School of Metallurgy,Shenyang 110819,China)

机构地区：[1]东北大学多金属共生矿生态化冶金教育部重点实验室,沈阳110819 [2]东北大学冶金学院,沈阳110819

出　　处：《材料与冶金学报》2021年第3期204-210,共7页Journal of Materials and Metallurgy

基　　金：国防科工局基础科研项目(JCKY2018110C051);中央高校基本科研业务专项资金资助项目(N2125015)。

摘　　要：采用PVDF压力传感器收集应力波数据的方法,对不同密度的泡沫铝夹芯板结构进行实爆实验,考察在有限水域爆炸下泡沫铝夹芯结构的抗爆炸冲击波衰减能力,并使用ANSYS/LS-DYNA软件对爆炸冲击波的传递过程进行数值模拟分析.研究结果表明,在相同爆炸加载条件下,四种密度泡沫铝夹芯板的抗爆炸冲击波衰减率均高于90%,低密度泡沫铝夹芯板的抗爆炸冲击波衰减能力高于高密度泡沫铝夹芯板,密度为0.26 g/cm^(3)泡沫铝夹芯板的抗爆炸冲击波衰减率比密度为0.57 g/cm^(3)试样提高了7.83%.应力波在低密度的泡沫铝夹芯板中传播比在高密度试样中慢,实爆实验中两组高密度泡沫铝板相比两组低密度泡沫铝板传播平均快40.5μs.本文研究成果可为泡沫铝夹芯板结构作为防爆材料提供理论基础.Using the method of PVDF pressure sensor to collect stress wave data,the real explosion test of aluminum foam sandwich panels with different densities was carried out to investigate the resistance to blast shock attenuation capability of aluminum foam sandwich structure exploded in limited water area.The ANSYS/LS-DYNA software was also used to simulate the propagation process of blast wave.The research results show that under the same explosive loading conditions,the attenuation rates of blast shock waves of four kinds of aluminum foam sandwich panels are all higher than 90%.The attenuation ability of low density aluminum foam sandwich panels against blast waves is higher than that of high density aluminum foam sandwich panels,and the density of 0.26 g/cm^(3) foam aluminum sandwich panels is 7.83%higher than that of 0.57 g/cm^(3) specimens.The stress wave propagations in low density foam aluminum sandwich panels,are slower than that of high-density samples.In the real explosion experiment,the wave propagations of two high densities aluminum foam plates are faster than low density samples by an average of 40.5μs.The research results in this paper can provide a theoretical basis for aluminum foam sandwich panels as explosion-proof materials.

关 键 词：泡沫铝夹芯结构 有限水域爆炸 有限元模拟 应力波衰减 

分 类 号：TB34[一般工业技术—材料科学与工程]