CAJ | 학술논문

　　针对海绵橡胶的物理特性展开了准静态单轴压缩实验和分离式Hopkinson压杆动态压缩实验，得到海绵橡胶材料的应力-应变曲线，并对材料的应变率效应及材料的变形和破坏特性进行深入分析，在此基础上给出材料的动静态本构关系。结果表明：海绵橡胶材料在准静态加载下，应变大于0.3时，应力-应变曲线才开始偏离坐标轴，表现出非线性特征；在冲击载荷下，海绵橡胶的应变率效应并不明显。
　　침대해면상효적물리특성전개료준정태단축압축실험화분리식Hopkinson압간동태압축실험，득도해면상효재료적응력-응변곡선，병대재료적응변솔효응급재료적변형화파배특성진행심입분석，재차기출상급출재료적동정태본구관계。결과표명：해면상효재료재준정태가재하，응변대우0.3시，응력-응변곡선재개시편리좌표축，표현출비선성특정；재충격재하하，해면상효적응변솔효응병불명현。
Quasi?static uniaxial compression test and SHPB dynamic compression experiments were carried out on the physical properties of sponge rubber. Basic mechanical parameters and stress ? strain curve of the rubber were obtained through experiments. The static and dynamic constitutive model was presented based on necessary analysis of deformation behavior of materials,strain rate effects and destruction properties. The results show that under quasi?static loading with strain more than 0.3,stress?strain curve begins to be off the coordinate axis and appears the nonlinear property;strain rate effect is not obvious under shock loading with the increase of strain rate.