张建亮, 夏志成, 周竞洋, 姚新. 密闭空间内三种防爆隔墙的减爆吸能效应分析[J]. 工程力学, 2017, 34(增刊): 314-319. DOI: 10.6052/j.issn.1000-4750.2016.03.S043
引用本文: 张建亮, 夏志成, 周竞洋, 姚新. 密闭空间内三种防爆隔墙的减爆吸能效应分析[J]. 工程力学, 2017, 34(增刊): 314-319. DOI: 10.6052/j.issn.1000-4750.2016.03.S043
ZHANG Jian-liang, XIA Zhi-cheng, ZHOU Jing-yang, YAO Xin. ANALYSIS ON THE EXPLOSION ISOLATION AND ABSORPTION EFFECT OF THREE KINDS OF EXPLOSION PROOF WALLS IN AIRTIGHT SPACE[J]. Engineering Mechanics, 2017, 34(增刊): 314-319. DOI: 10.6052/j.issn.1000-4750.2016.03.S043
Citation: ZHANG Jian-liang, XIA Zhi-cheng, ZHOU Jing-yang, YAO Xin. ANALYSIS ON THE EXPLOSION ISOLATION AND ABSORPTION EFFECT OF THREE KINDS OF EXPLOSION PROOF WALLS IN AIRTIGHT SPACE[J]. Engineering Mechanics, 2017, 34(增刊): 314-319. DOI: 10.6052/j.issn.1000-4750.2016.03.S043

密闭空间内三种防爆隔墙的减爆吸能效应分析

ANALYSIS ON THE EXPLOSION ISOLATION AND ABSORPTION EFFECT OF THREE KINDS OF EXPLOSION PROOF WALLS IN AIRTIGHT SPACE

  • 摘要: 通过墙体的变形来耗散爆炸能量,可以有效地减轻爆炸冲击波对目标的破坏作用。采用一维应力波理论分析比较钢板夹泡沫铝、钢板夹聚氨脂和钢板夹混凝土三种防爆隔墙的减爆吸能效应,并运用ANSYS/LS-DYNA有限元程序对三种墙体在爆炸冲击波作用下的减爆吸能效应进行数值模拟。研究结果表明:钢板夹泡沫铝的防护效应最好,钢板夹混凝土次之,钢板夹聚氨酯最差。防护效应随着测点到防爆隔墙距离的增加而增大。防爆隔墙的减爆性能不仅与防爆隔墙的变形程度有关,还与防爆隔墙的自身强度有关。

     

    Abstract: The energy absorption of an explosion-proof wall by its own deformation can effectively reduce the damage of the explosion shock wave to the target. Using the one-dimensional stress wave theory and the finite element analysis program ANSYS/LS-DYNA, the explosion isolation and energy absorption of aluminum foam sandwich explosion-proof walls, polyurethane explosion-proof sandwich walls and concrete sandwich explosion-proof walls are analyzed. The results show that aluminum foam sandwich explosion-proof walls perform the best on energy absorption, concrete sandwich explosion-proof walls come to the second, and polyurethane sandwich explosion-proof walls perform the worst. Protective effects of anti-blast walls is dependent on the distance from the wall to the measuring points. As the distance increases, the protection rate increases. Explosion-proof wall performance depends on not only the deformation of anti-blast walls, but also the strength of anti-blast walls.

     

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