聚苯乙烯（EPS）泡沫材料在冲击防护领域具有良好的应用前景。为揭示EPS泡沫材料的压缩力学特性和吸能性能，开展不同密度（10、18、25 kg/m³）的EPS泡沫材料在不同加载速率（12、24、48 mm/min）下的单轴静力压缩试验研究。结果表明：同等应变条件下，EPS泡沫材料的压缩应力随材料密度和加载速率增加而增加。材料屈服强度和弹性模量与材料密度和加载速率呈非线性正相关。吸能密度随材料密度和加载速率增加而增加，且增加速率逐渐降低；比吸能随材料密度增加而减小，随加载速率增加而增加。研究结果可以为EPS泡沫材料在抗冲击方面的应用提供依据。

Expanded polystyrene (EPS) foam material has a good application prospect in the field of impact resistance. In order to reveal the compression mechanical properties and energy absorption properties of EPS foam materials, uniaxial static compression tests of EPS foam materials with different densities (10, 18, 25 kg/m³) were carried out under different loading rates (12, 24, 48 mm/min). The results show that the stress of EPS foam material increases with the increase of material density and loading rate under the same strain condition. The yield strength and elastic modulus of EPS foam material are positively correlated with material density and loading rate. The energy absorption density increases with the increase of material density and loading rate, and the increasing rate decreases gradually. The specific energy absorption decreases with the increase of material density and increases with the increase of loading rate. The research results can provide a basis for the application of EPS foam materials in the field of impact resistance.