等腰梯形蜂窝玻璃钢夹芯板的侧压性能

doi:10.11901/1005.3093.2015.12.931

材料研究学报

2015, Vol. 29

Issue (12): 931-940 DOI: 10.11901/1005.3093.2015.12.931

本期目录 | 过刊浏览

等腰梯形蜂窝玻璃钢夹芯板的侧压性能

郑吉良(

),孙勇,彭明军

昆明理工大学材料科学与工程学院昆明 650093

Edgewise Compressive Property for Sandwich Panel of Steel Plates with Isosceles-trapezoid Honeycomb Core of Fiber Cloth Reinforced Epoxy Resin

Jiliang ZHENG(

),Yong SUN,Mingjun PENG

School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China

引用本文:

郑吉良,孙勇,彭明军. 等腰梯形蜂窝玻璃钢夹芯板的侧压性能[J]. 材料研究学报, 2015, 29(12): 931-940.
Jiliang ZHENG, Yong SUN, Mingjun PENG. Edgewise Compressive Property for Sandwich Panel of Steel Plates with Isosceles-trapezoid Honeycomb Core of Fiber Cloth Reinforced Epoxy Resin[J]. Chinese Journal of Materials Research, 2015, 29(12): 931-940.

全文: PDF(2533 KB) HTML

摘要:

使用材料试验机对等腰梯形蜂窝芯玻璃钢夹芯板面的内压缩性能进行了实验测试与模拟研究。结果表明, 夹芯板面内压缩的破坏方式主要有面板折断、夹芯板屈曲失稳及面板和蜂窝脱粘。面板是夹芯板面内压缩的主要承载构件, 蜂窝芯对面板起固支作用。面板的结构参数和材料参数是影响夹芯板面内压缩抗压强度与承载应力的主要因素, 蜂窝芯的结构参数和材料参数对夹芯板面内压缩抗压强度的影响较小, 而蜂窝芯的高度对夹芯板面内压缩承载应力有显著的影响。

关键词 ：无机非金属材料, 等腰梯形蜂窝芯, 抗压强度, 承载应力, 夹芯板, 面内压缩

Abstract：

The edgewise compressive property of sandwich panel of steel plates with isosceles-trapezoid honeycomb core of fiber cloth reinforced epoxy resin is measured by using a material testing machine, while a simulation mode is established to describe the edgewise compressive behavior. The edgewise compressive pressure may induce three types of damages of the sandwich panel, namely, the broken of plates, the buckling instability of the sandwich panel and the detachment of plates with the honeycomb core. Under an applied edgewise compressive pressure, the plates are the main load bearing component of the sandwich panel, while the honeycomb core acts only as a connector and supporter . The parameter related with the structure and the material of the plates has a great influence on the in-panel compressive strength and the bearing stress for the sandwich panel. In the contrast, parameter related with the structure and the material of the honeycomb core has a small influence on the compressive strength of the sandwich panel, but the height of honeycomb core has a great influence on the bearing stress of the sandwich panel.

Key words： inorganic non-metallic materials isosceles-trapezoid honeycomb core compressive strength load stress sandwich panel in-plane compression

收稿日期: 2015-03-05

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https://www.cjmr.org/CN/10.11901/1005.3093.2015.12.931 或 https://www.cjmr.org/CN/Y2015/V29/I12/931

图1 等腰梯形蜂窝玻璃钢夹芯板结构其单元胞体结构参数

图2 等腰梯形玻璃钢蜂窝芯夹芯板侧压有限元模型、网格、路径及边界条件

图3 等腰梯形蜂窝芯玻璃钢夹芯板不同破坏方式的应力与位移云图

图4 蜂窝芯界面路径的正应力(z)、最大剪切应力理论值及面板界面路径的最大剪切应力理论值的分布

图5 等腰梯形蜂窝芯玻璃钢夹芯板的变形示意图

图6 蜂窝芯与面板中单向玻璃纤维排布方向对等腰梯形蜂窝芯玻璃钢夹芯板中面板折断抗压强度的影响

图7 面板厚度、Part2厚度t1、Part2高度h、蜂窝芯横截面形状的等腰梯形上底边长a与高hc对等腰梯形蜂窝芯玻璃钢夹芯板中面板折断抗压强度的影响

图8 蜂窝芯与面板中单向玻璃纤维排布方向对等腰梯形蜂窝芯玻璃钢夹芯板屈曲失稳承载应力的影响

图9 面板厚度、Part2厚度t1、Part2高度h、蜂窝芯横截面形状的等腰梯形上底边长a与高hc对等腰梯形蜂窝芯玻璃钢夹芯板屈曲失稳承载应力的影响

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