利用INSTRON-1185型万能材料试验机在准静态加载环境下对不同密度的聚氨酯泡沫的抗压、抗拉及抗弯性能进行了较系统的实验研究,分析了聚氨酯泡沫材料的力学性能及吸能特性随表观密度的变化规律。研究表明,聚氨酯泡沫材料的抗压性能优于其抗拉性能,该材料具有良好的吸能特性,且其吸能特性随密度的增大而提高。 Using INSTRON-1185 universal material testing machine in a quasi-static loading environment for different densities of polyurethane foam compression, tensile and flexural properties of a more systematic experimental study of polyurethane foam mechanical properties and energy absorption Characteristics with the apparent density changes. Research shows that the compressive properties of polyurethane foam are better than those of its tensile properties. The material has good energy absorption properties, and its energy absorption properties increase with the increase of density.