The paper composite sandwich structure with corrugation and honeycomb cores has been widely used in civil and national defense industries, and the cushioning energy absorption characteristic is a key indicator to evaluate the performance of this composite structure. Therefore, this paper is focus on the influences of honeycomb thickness on the shock acceleration response and deformation characteristics to analyze cushioning energy absorption performance of the composite structure by various experimental tests. The experimental result shows that, the paper corrugation layer firstly comes into crushed, and then the paper honeycomb layer is crushed. Additionally, the large honeycomb thickness may cause the secondary collapse of paper honeycomb layer. Under the same impact energy or impact mass, the cushioning energy absorption of the single-sided composite sandwich structure is better than that of the double-sided structure with the same honeycomb thickness. However, the impact resistance of the double-sided composite structure is better than that of the single-sided structure. For the paper composite sandwich structures with the honeycomb thicknesses 10, 15, 20 and 25 mm, the increase of honeycomb thickness would decrease the cushioning energy absorption of the whole structure under the drop impact with low energy. However, under the drop impact with high energy, the influence of honeycomb thickness on cushioning energy absorption is contrary. For the paper composite sandwich structure, the specific energy absorption, unit volume energy absorption, and stroke efficiency for the honeycomb thicknesses 10, 15, 20 and 25 mm are higher than those for the honeycomb thickness 70 mm. Therefore, the low honeycomb thickness is more advantageous for the cushioning energy absorption of paper composite sandwich structure.

具有波纹和蜂窝芯的纸复合夹芯结构已广泛应用于民用和国防工业，缓冲吸能特性是评价这种复合结构性能的关键指标。因此，本文着眼于蜂窝厚度对冲击加速度响应和变形特性的影响，通过各种实验测试分析复合结构的缓冲吸能性能。实验结果表明，纸瓦楞层首先被压碎，然后纸蜂窝层被压碎。此外，大蜂窝厚度可能导致纸蜂窝层的二次塌陷。在相同的冲击能量或冲击质量下，单面复合夹层结构的缓冲吸能性能优于相同蜂窝厚度的双面结构。但是，双面复合结构的抗冲击性比单面结构要好。对于蜂窝厚度为 10、15、20 和 25 mm 的纸复合夹层结构，蜂窝厚度的增加会降低整个结构在低能量跌落冲击下的缓冲吸能。但在高能量跌落冲击下，蜂窝厚度对缓冲吸能的影响则相反。对于纸复合夹层结构，蜂窝厚度为 10、15、20 和 25 毫米比蜂窝厚度 70 毫米高。因此，较低的蜂窝厚度更有利于纸复合夹层结构的缓冲吸能。