负泊松比蜂窝空腔覆盖层水下爆炸抗冲性能研究

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (21) : 126-132.

论文

李俊杰，陶猛，叶韩峰

作者信息 +

Anti-shock performance of honeycomb claddings with negative Poisson’s ratio subjected to UNDEX

LI Junjie, TAO Meng, YE Hanfeng

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文章历史 +

摘要

基于显示动力学有限元ABAQUS/Explicit建立了流固耦合计算模型。研究了具有负泊松比特性的橡胶蜂窝空腔覆盖层在水下非接触性爆炸作用下的抗冲特性，分析了覆盖层的动态响应并讨论了高度、胞元壁厚和扩张角度等结构参数对覆盖层抗冲击性能的影响。结果表明，负泊松比蜂窝覆盖层水下爆炸抗冲性能依赖于结构参数，随着高度增加、胞元壁厚的减小、扩展角绝对值的增大，覆盖层的抗冲性能得到有效提高。

Abstract

Based on the explicit dynamic finite element software ABAQUS/Explicit, a fluid-solid coupled computation model was established to study the anti-shock performance of honeycomb rubber claddings with negative Poisson’s ratio subjected to UNDEX.The dynamic responses of the claddings were analyzed, and effects of structural parameters including height, cell element wall thickness and expanding angle on the claddings’ anti-shock performance were discussed.Results showed that the anti-shock performance of the claddings depends on structure parameters; the anti-shock performance of the claddings can be improved effectively with increase in height, decrease in cell element wall thickness and increase in absolute value of expanding angle.

导出引用

李俊杰，陶猛，叶韩峰. 负泊松比蜂窝空腔覆盖层水下爆炸抗冲性能研究[J]. 振动与冲击, 2019, 38(21): 126-132

LI Junjie, TAO Meng, YE Hanfeng. Anti-shock performance of honeycomb claddings with negative Poisson’s ratio subjected to UNDEX[J]. Journal of Vibration and Shock, 2019, 38(21): 126-132

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