Preliminary Study of Sandwich Panel with Rotational Friction Hinge Device against Blast Loadings
Preliminary Study of Sandwich Panel with Rotational Friction Hinge Device against Blast Loadings
复制标题
带旋转摩擦铰装置的夹芯板抗爆炸荷载的初步研究
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
H. Hao
中科院分区：
文献类型：
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作者：
W. Chen;H. Hao
抗爆结构，如防爆门面板，是以坚固的方式设计和制造的，以抵抗爆炸荷载。这不仅增加了材料和建筑成本，而且也破坏了保护结构的操作性能。为了克服这些问题，许多研究人员试图在结构设计中使用高强度材料和不同的结构形式来抵抗爆炸和冲击荷载。本文介绍一种新型的夹芯门板结构-弹簧旋转摩擦铰链装置（RFHDS），以抵抗爆炸荷载。RFHDS可以帮助配备有RFHDS的面板在爆炸加载之后至少部分地恢复其原始配置，并且在爆炸事件之后保持其操作和抗爆炸能力。利用有限元软件Ls-Dyna对该夹层板的吸能和抗爆炸能力进行了数值模拟。结果表明，采用RFHDS的夹层门板可以显著提高门的抗爆性能。这种新型的夹层门板结构可用于减轻结构板设计中的爆炸荷载效应。
Blast-resistant structures, such as blast door panel, are designed and fabricated in a solid way to resist blast loads. This not only increases the material and construction costs, but also undermines the operational performance of the protective structures. To overcome these problems, many researchers try to use high-strength materials and different structural forms in structural design to resist the blast and impact loads. This study introduces a new configuration of sandwich door panel equipped with rotational friction hinge device with spring (RFHDS) to resist blast loading. The RFHDS can help the panel equipped with RFHDS to recover, at least partially its original configuration after blast loading and maintain its operational and blast-resistance capability after a blast event. The energy absorption and blast loading resistance capacities of this proposed sandwich panel are numerically investigated by using finite element code Ls-Dyna. It is found that the proposed sandwich door panel with RFHDS can improve the blast-resistant capacity significantly. This new configuration of sandwich door panel can be employed to mitigate blast loading effects in structural panel design.