内爆炸载荷下双层钢管结构的动力响应

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (19) : 70-74.

论文

内爆炸载荷下双层钢管结构的动力响应

刘珍1 李世强2 李鑫2 王志华2 吴桂英1

作者信息 +

The dynamic response of double-layer steel pipes under internal blast loading

Liu zhen1, Li Shi-qiang2, Li Xin2, Wang Zhi-hua2, Wu Gui-ying1

Author information +

文章历史 +

摘要

采用实验与数值模拟相结合的方法研究了双层钢管结构在内爆炸载荷作用下的动力响应。考察了内外层钢管的壁厚设置与炸药质量对结构变形失效模式及其抗爆性能的影响。结果表明：与外管壁厚相比，内管壁厚对结构变形失效模式起主导作用，随着炸药质量的增加，内管壁厚对结构变形的影响逐渐减弱；并且内管壁厚的改变显著影响结构的能量分配机制，增加炸药质量时，外管能量耗散增幅大于内管。

Abstract

An experimental and the finite element analysis (FEA) on the dynamic response of double-layer steel pipes to internal blast loading are presented in this paper. Both effects of wall-thickness-arrangements of double-layer steel pipes and mass change of TNT charges were discussed. The results indicate that compared to the change of outer pipe thickness, inner pipe thickness change does more significant effect on the shock resistance performance of double-layer steel pipes under the studied charge mass, but the effect reduces with the increasing of charge mass. Meanwhile, inner pipe thickness change does especially function on energy absorption. However with the increase of charge mass, energy dissipation in outer pipe increases faster than in inner pipe.

导出引用

刘珍1 李世强2 李鑫2 王志华2 吴桂英1. 内爆炸载荷下双层钢管结构的动力响应[J]. 振动与冲击, 2016, 35(19): 70-74

Liu zhen1, Li Shi-qiang2, Li Xin2, Wang Zhi-hua2, Wu Gui-ying1. The dynamic response of double-layer steel pipes under internal blast loading[J]. Journal of Vibration and Shock, 2016, 35(19): 70-74

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