The paper proposes a carbon fiber tube reinforced polyurethane foam material (CPM). Mechanical behavior of the CPM is investigated by quasi static crushing experiment. The results show that the carbon fiber tube reinforced design can obviously improve the energy absorption and load carrying capacity of the polyurethane (PU) foam. Parameter studies show that the density of the PU foam, the number and the diameter of the thin carbon fiber tube have significant effect on mechanical performance of the CPM. Moreover, the CPM filled thin walled columns (aluminum column or carbon fiber column) are further developed and their crushing behaviors are investigated under axial crushing conditions. The results show that the CPM filled design can effectively improve the crashworthiness of the aluminum column or the carbon fiber column. The interaction behavior between the CPM and the thin-walled column presents a significant contribution to energy absorption of the CPM filled columns. Moreover, the CPM filled carbon fiber column has greater potential to improve the crashworthiness than the CPM filled aluminum column. The research findings of this paper provide a new method for designing the lightweight protective structure.

该论文提出了一种碳纤维管增强聚氨酯泡沫材料（CPM）。通过准静态破碎实验研究了CPM的力学性能。结果表明，碳纤维管增强设计可以明显提高聚氨酯泡沫的能量吸收和承载能力。参数研究表明，PU泡沫的密度，细碳纤维管的数量和直径对CPM的机械性能有重要影响。此外，进一步开发了CPM填充薄壁塔（铝塔或碳纤维塔），并研究了其在轴向破碎条件下的破碎行为。结果表明，CPM填充设计可以有效提高铝柱或碳纤维柱的耐撞性。CPM和薄壁色谱柱之间的相互作用行为对CPM填充色谱柱的能量吸收有重要贡献。此外，CPM填充碳纤维柱比CPM填充铝柱具有更大的提高耐撞性的潜力。本文的研究成果为轻量化防护结构的设计提供了一种新方法。