The in-plane stiffnesses of a honeycomb core including the thickness effect
The in-plane stiffnesses of a honeycomb core including the thickness effect
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DOI：
10.1007/s004190050169
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发表时间：
1998-05-01
影响因子：
2.8
通讯作者：
Becker, W
中科院分区：
文献类型：
--
作者：
Becker, W
考虑的主题是一个规则的蜂窝芯的夹层结构的有效面内刚度的贡献。由于芯体位移与夹层面板位移的耦合，芯体的刚度贡献与其总厚度不成比例，这是可以预期的。相应的厚度效应是通过一个适当的封闭形式的方法进行调查。在这样做时，总的弹性核心应变能计算的基础上充分选择的位移表示。进一步推导了有效刚度与芯层总厚度的函数关系。通过有限元分析的有效刚度的比较计算给出了良好的协议。
The subject of the consideration is the contribution of a regular honeycomb core to the effective in-plane stiffnesses of a sandwich structure. Due to the coupling of the core displacements with those of the sandwich face sheets, the stiffness contribution of the core is not proportional to its total thickness, as could be expected. The corresponding thickness effect is investigated by means of an appropriate closed-form approach. In doing so, the total elastic core strain energy is calculated based on an adequately chosen displacement representation. Further on, the resultant effective stiffnesses are derived as a function of the total core thickness. A comparative computation of the effective stiffnesses by finite element analysis gives good agreement.