首页> 外文会议>ASME international manufacturing science and engineering conference 2011 >EFFECTS OF ASPECT RATIO AND SIDE CONSTRAINTS ON ELASTIC BUCKLING OF MULT I WALL STRUCTURES AND TUBES
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EFFECTS OF ASPECT RATIO AND SIDE CONSTRAINTS ON ELASTIC BUCKLING OF MULT I WALL STRUCTURES AND TUBES

机译:纵横比和侧面约束对多重壁结构和管的弹性屈曲的影响

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摘要

Buckling of plates and tubes plays an important role in structural safety and energy absorption. Although buckling of plates and tubes has been studied theoretically and experimentally in the past, the effects of aspect ratio and side constraint on buckling of multi-wall structures and tubes has not been investigated systematically. In this work, finite element simulations have been carried out to investigate the buckling behavior of multi-wall structures and tubes. A series of one- to three-panel walls and square tubes with various aspect ratios were simulated. The critical aspect ratios causing buckling mode transition were obtained and compared with theoretical predictions available in the literature. Effects of wall angle and side constraint on buckling behavior were investigated. The relevance of research findings to honeycomb-like structures was discussed.
机译:板和管的屈曲在结构安全和能量吸收中起着重要作用。尽管过去已经在理论和实验上对板和管的屈曲进行了研究,但尚未系统地研究纵横比和侧约束对多壁结构和管的屈曲的影响。在这项工作中,已经进行了有限元模拟以研究多壁结构和管的屈曲行为。模拟了一系列具有不同纵横比的一到三面板墙和方管。获得了导致屈曲模式转变的临界纵横比,并将其与文献中的理论预测进行了比较。研究了壁角和侧约束对屈曲行为的影响。讨论了研究结果与蜂窝状结构的相关性。

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