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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.
From the viewpoint of structural bionics, a model of “hole-core sandwich structure” was put forward. Through the simulation sample test, the compression deformation mechanism of “core-shell structure” Core structure “bearing capacity mainly depends on the ” shell “material, structure size and arrangement angle and other factors concluded.Using thin shell theory, calculated ” egg shell “unit under the uniform pressure The critical stress of buckling is also obtained. At the same time, the finite element model of the ”shell“ element is established, and the statics and buckling modal analysis are carried out to provide the theory for the further lightweight design of the ”shell and core structure" in accordance with.