EFFECT OF CORE HEIGHT ON GENERAL STABILITY OF HONEYCOMB SANDWICH STRUCTURE

JIN Di; QIAO LingYun; FAN Yu

doi:10.16579/j.issn.1001.9669.2017.05.028

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EFFECT OF CORE HEIGHT ON GENERAL STABILITY OF HONEYCOMB SANDWICH STRUCTURE

更新时间：2022-09-22

- EFFECT OF CORE HEIGHT ON GENERAL STABILITY OF HONEYCOMB SANDWICH STRUCTURE
- Journal of Mechanical Strength Vol. 39, Issue 5, Pages: 1164-1168(2017)
- 作者机构：
  
  1. 中航西飞民用飞机有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2017.05.028
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JIN Di, QIAO LingYun, FAN Yu. EFFECT OF CORE HEIGHT ON GENERAL STABILITY OF HONEYCOMB SANDWICH STRUCTURE. [J]. 39(5):1164-1168(2017)
DOI：

JIN Di, QIAO LingYun, FAN Yu. EFFECT OF CORE HEIGHT ON GENERAL STABILITY OF HONEYCOMB SANDWICH STRUCTURE. [J]. 39(5):1164-1168(2017) DOI： 10.16579/j.issn.1001.9669.2017.05.028.

摘要

通过对压缩、剪切载荷作用下复合材料蜂窝夹层板的稳定性试验和采用工程算法及有限元法的稳定性计算,验证了有限元计算方法的准确性,讨论了芯层高度对薄面板复合材料蜂窝夹层板总体稳定性的影响。结果表明,增加蜂窝芯高度能显著提高薄面板复合材料蜂窝夹层板的屈曲载荷,但剩余承载能力随芯层高度增加而减小;并且单一增加芯层高度会导致屈曲载荷下面板应变增大,甚至超过许用值。

Abstract

Buckling loads of honeycomb sandwich structure under compression and shear load was calculated by engineering algorithm and finite element method. Stability test on specimens was conducted to obtain buckling loads. The test results also verified the accuracy of the finite element method. The effect of core height on general stability problem of honeycomb sandwich structure for thin composite panels was discussed. The results show that it is increasing core height that could enhance flexure strength of composite honeycomb sandwich structure,but the spare carrying capacity descends. The strain of panels increases and indeed to exceed the allowable with only increasing core height.

关键词

复合材料蜂窝夹层结构芯层高度总体稳定性屈曲载荷

Keywords

CompositeHoneycomb sandwich structureCore heightGeneral stabilityBuckling loads

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