泡沫铝夹芯圆筒抗爆性能研究

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (23) : 166-173.

论文

泡沫铝夹芯圆筒抗爆性能研究

刘新让1，田晓耕1，卢天健1，梁斌2，王伊卿3

作者信息 +

Blast resistance of sandwich-walled hollow cylinders with aluminum foam cores

LIU Xin-rang1，TIAN Xiao-geng1，LU Tian Jian1，LIANG Bin2，WANG Yi-qing3

Author information +

文章历史 +

摘要

在验证了所用方法有效性的基础上，采用有限元软件LS-DYNA分析了重量相同、由A3钢和闭孔泡沫铝制成的夹芯圆筒与由A3钢制成的实体圆筒在3种不同爆炸载荷作用下的动力响应，同时分析了5种不同夹芯圆筒的抗爆性能。结果表明，在相同爆炸载荷的条件下，无论是在变形还是在能量吸收方面，夹芯圆筒都优于相同重量的实体圆筒；对于夹芯圆筒，内面板厚度应不大于外面板厚度，这样能在降低夹芯圆筒整体变形的同时发挥泡沫铝芯层的吸能优势。

Abstract

Based on the effectiveness of the method of finite elements used in this paper, the dynamic responses of two different hollow cylinders with equal mass are studied using LS-DYNA under three different blast loading. One has sandwich wall with A3 steel face-sheets and close-celled aluminum foam core, and the other has monolithic A3 steel wall. In addition, the blast resistance of five different sandwich-walled hollow cylinders are also studied. The results demonstrate that the sandwich-walled hollow cylinder is superior to the hollow cylinder with monolithic solid wall under the same blast loading, whether in terms of deformation or energy absorption. For sandwich-walled hollow cylinder, the thickness of inner face-sheet should not bigger than that of outer face-sheet, and only in this condition can reduce the global deformation of sandwich-walled hollow cylinder and take the advantage of the energy absorption of foam core.

导出引用

刘新让;田晓耕;卢天健;梁斌;王伊卿. 泡沫铝夹芯圆筒抗爆性能研究[J]. 振动与冲击, 2012, 31(23): 166-173

LIU Xin-rang;TIAN Xiao-geng;LU Tian Jian;LIANG Bin;WANG Yi-qing. Blast resistance of sandwich-walled hollow cylinders with aluminum foam cores[J]. Journal of Vibration and Shock, 2012, 31(23): 166-173