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首页> 外文期刊>International Journal of Mechanical Sciences >Flatwise compression and flexural behavior of foam core and polymer pin-reinforced foam core composite sandwich panels
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Flatwise compression and flexural behavior of foam core and polymer pin-reinforced foam core composite sandwich panels

机译：泡沫芯和聚合物销增强泡沫芯复合夹芯板的水平压缩和弯曲行为

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摘要

The behavior of foam core sandwich (FCS) and polymer pin-reinforced foam core sandwich (PRFCS) panels was experimentally explored for flatwise compression and flexural loadings. The FCS and PRFCS panels were made of chopped strand mat glass/polyester as face sheets and polyurethane foam as core material using a vacuum infusion process. The aim of the study is to determine the effect of the polyester pin reinforcement in the foam core when the panels are subjected to flexural and flatwise compression loadings. Moreover, the effects of different loading rates on the flexural response of glass/polyester laminate and both types of the sandwich panels were determined. It was found that by reinforcing the foam core with cylindrical polymer pins, the flatwise compression and flexural properties of panels were increased significantly. Furthurmore, it was found that the diameter of polymer pins had a large influence while the loading rate had a moderate influence on the flexural stiffness of both types of the composite sandwich panels.
机译：泡沫芯夹层（FCS）和聚合物销增强泡沫芯夹层（PRFCS）面板的性能已通过实验研究，用于水平压缩和弯曲载荷。 FCS和PRFCS面板由切碎的毡垫玻璃/聚酯制成面板，聚氨酯泡沫作为芯材，采用真空灌注工艺制成。该研究的目的是确定当面板承受弯曲和水平压缩载荷时，聚酯销钉增强材料在泡沫芯中的作用。此外，确定了不同的加载速率对玻璃/聚酯层压板和两种类型的夹心板的挠曲响应的影响。发现通过用圆柱形聚合物销钉增强泡沫芯，面板的水平压缩和挠曲性能显着提高。进一步，发现聚合物销钉的直径影响很大，而加载速率对两种类型的复合夹芯板的抗弯刚度有中等影响。

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