Abstract This paper focuses on strengthening carbon fiber composite honeycombs which provide the higher strength than other competitive lightweight materials by the design of curved wall topology. And the carbon fiber composite curved honeycombs (CCCHs) are manufactured via a molding and bonding process. The out-of-plane compressive properties of the woven and unidirectional laminated CCCHs are measured and analyzed. In addition, the effects of curvature radius and wall thickness on the compressive strength of the laminated CCCHs are investigated. The experimental results show that the out-of-plane compressive strengths increase when only the curvature radius decreases or the wall thickness increases. By comparison, the out-of-plane compressive strengths of the laminated CCCHs show superior to those of almost existing competitive lightweight honeycombs, and it can be considered as a selective lightweight sandwich structure. It provides a possibility for the honeycomb structure to be used as load-bearing components.

中文翻译：

---

提高碳纤维复合材料蜂窝的面外压缩性能

摘要 本文着重于通过曲面壁拓扑设计来增强碳纤维复合蜂窝材料，使其强度高于其他竞争性轻质材料。碳纤维复合弯曲蜂窝 (CCCH) 是通过成型和粘合工艺制造的。测量和分析了编织和单向层压 CCCH 的平面外压缩特性。此外，还研究了曲率半径和壁厚对叠层 CCCH 抗压强度的影响。实验结果表明，仅当曲率半径减小或壁厚增加时，面外抗压强度增加。通过对比，层压CCCH的面外抗压强度优于几乎现有的竞争性轻质蜂窝结构，可以认为是一种选择性的轻质夹层结构。它为蜂窝结构用作承重部件提供了可能性。