碳纤维增强可果美晶格核芯的夹芯板

设计和制造了用碳纤维增强的中等拉伸的可果美晶格,以粘贴片作为表皮装配成夹芯板。通过面外受压、面内受压和3点弯曲试验,对夹芯板的力学性能进行了测试,揭示了夹芯板结构的不同破坏模式。试验结果显示,碳纤维增强可果美晶格比泡沫和蜂巢具有更高的刚度和强度。研究发现,弯曲和剥离决定了夹芯结构的力学性能,表面越平越能提高夹芯板的整体力学性能。

Sandwich Panels with Kagome Lattice Cores Reinforced by Carbon Fibers

Stretching dominated Kagome lattices reinforced by carbon fibers were designed and manufactured. The sandwich panels were assembled with bonded laminate skins. The mechanical behaviors of the sandwich panels were tested by out-of-plane compression, in-plane compression and three-point bending. Different failure modes of the sandwich structures were revealed. The experimental results showed that the carbon fiber reinforced lattice grids are much stiffer and stronger than foams and honeycombs. It was found th...