碳纤维八面体骨架增强泡沫复合结构的制备及力学性能分析

PREPARATION AND MECHANICAL PROPERTIES ANALYSIS OF CARBON FIBER SKELETON REINFORCED HYBRID COMPOSITE

设计了一种不需加装面板的碳纤维八面体骨架增强泡沫复合结构,介绍了碳纤维八面体骨架增强泡沫复合结构的制作工艺。分别从实验测试以及理论分析两个方面,获得了碳纤维八面体骨架增强泡沫复合结构的抗压强度及压缩模量等力学性能。研究结果表明:受边界效应影响,碳纤维八面体骨架增强泡沫复合结构的抗压强度及压缩模量明显降低,实测抗压强度介于理论最大值与最小值,压缩模量甚至低于最小值。对比其他类型的碳纤维-泡沫复合结构,碳纤维八面体骨架增强泡沫复合结构在抗压强度与压缩模量上具有一定优势。碳纤维八面体骨架增强泡沫复合结构具有近乎各向同性的力学性能,密度低于水,耐腐蚀性高,在航海领域的应用前景广泛。

A kind of carbon fiber reinforced foam without panels for the hybrid octet lattice was designed and the fabrication technology of the hybrid octet lattice was introduced.The compressive strength and compressive modulus of carbon fiber skeleton reinforced hybrid composite were obtained from experimental test and theoretical analysis.The results show that the compressive strength and modulus of carbon fiber skeleton reinforced hybrid composite decrease significantly by boundary effect.The measured compressive strength is between the theoretical maximum and minimum,and the compressive modulus is even lower than the minimum.Compared with other types of carbon fiber-foam composite structures,carbon fiber skeleton reinforced hybrid composite have certain advantages in compressive strength and compressive modulus.Carbon fiber skeleton reinforced hybrid composite has the following advantages including nearly isotropic mechanical properties,and lower density than water and corrosion resistance.It has wide application prospects in the field of navigation.