| 蛋壳夹芯结构的变形机制及力学性能 |
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| 引用本文： | 焦洪杰,张以都,陈五一,张洪伟.蛋壳夹芯结构的变形机制及力学性能[J].北京航空航天大学学报,2009,35(2):205-208. |
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| 作者姓名： | 焦洪杰 张以都 陈五一 张洪伟 |
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| 作者单位： | 北京航空航天大学机械工程及自动化学院,北京,100191;北京航空航天大学机械工程及自动化学院,北京,100191;北京航空航天大学机械工程及自动化学院,北京,100191;北京航空航天大学机械工程及自动化学院,北京,100191 |
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| 摘 要： | 从结构仿生的观点出发,提出了"孔壳夹芯结构"模型,通过模拟样件试验,归纳出了"孔壳夹芯结构"的压缩变形机制,得出"蛋壳夹芯结构"的承载能力主要取决于"蛋壳"的材料、结构尺寸和排列角度等因素的结论.应用薄壳理论,算出了"蛋壳"单元在承受均布压力情况下的屈曲临界压力,同时,对"蛋壳"单元建立有限元模型,进行了静力学和屈曲模态分析,为进一步的"蛋壳夹芯结构"的工程轻量化设计提供了理论依据.
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| 关 键 词： | 蛋壳夹芯结构 结构仿生 屈曲临界载荷 |
| 收稿时间： | 2008-07-20 |
Distortion mechanism and mechanics performance of eggshell-like gore structure |
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| Jiao Hongjie,Zhang Yidu,Chen Wuyi,Zhang Hongwei.Distortion mechanism and mechanics performance of eggshell-like gore structure[J].Journal of Beijing University of Aeronautics and Astronautics,2009,35(2):205-208. |
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| Authors: | Jiao Hongjie Zhang Yidu Chen Wuyi Zhang Hongwei |
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| Institution: | School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | From the point of structure biomimetic,the model of eggshell-like thin core structure was put forward.From the test of model,the press distortion mechanism was concluded and the carrying capacity of egg-like thin shell core structure was depended on material,size and form angle.Applying thin shell theory,buckling critical load of eggshell-like under action of press load was counted out.In addition,limit element unit model was built up and mechanism and buckling mode were analyzed.The theory basis for weight... |
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| Keywords: | egg shell-like core structure structure biomimetic buckling critical load |
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