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| Stability analysis of honeycomb sandwich plate considering the height effect of honeycomb core |
| Received:October 17, 2018 Revised:December 25, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20181017003 |
| KeyWord:analytical homogenization Refined Zigzag Theory honeycomb sandwich plate height effect buckling load |
| Author | Institution |
| 王会平 |
北京宇航系统工程研究所, 北京 |
| 张东 |
北京宇航系统工程研究所, 北京 |
| 杨子豪 |
沈阳航空航天大学 辽宁省飞行器复合材料结构分析与仿真重点实验室, 沈阳 |
| 贺丹 |
沈阳航空航天大学 辽宁省飞行器复合材料结构分析与仿真重点实验室, 沈阳 |
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| Abstract: |
| The equivalent elastic properties of a honeycomb core are closely related to the honeycomb height due to the influence of adjacent face-sheets,however,the traditional stability models of a honeycomb sandwich plate have not taken this into account.Thus,in this paper,a new stability model of a honeycomb sandwich plate on the basis of Refined Zigzag Theory is proposed.The equivalent modulus of a honeycomb core is obtained through an analytical homogenization method,and therefore enables the present model could reflects the influences of equivalent property variations caused by the honeycomb height change on buckling loads,i. e.the height effect of a honeycomb core is captured.As an example,a honeycomb sandwich square plate with simply supported boundary condition subjected to an in-plane unidirectional compressive load is analytically solved.Numerical results indicate that the height effect of the honeycomb core is obvious as honeycomb core height is low or the ratio of core height to totally plate thickness is large,but with the increases of core height or the decreases of honeycomb core height ratio,the height effect becomes gradually weakened until vanished. |
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