为研究2024铝合金材料的动态力学性能，利用电子万能试验机和Hopkinson杆，结合准静态和动态的试验方式，在大范围应变率(10-4~103)内进行了拉伸和压缩测试。根据试验数据，绘制了不同应变率下的真实应力应变曲线，构建了2024铝合金材料的动态本构模型。结果表明：(1)2024铝合金是应变率不敏感材料；(2)高应变率下，韧性降低，脆性增大；(3)2024铝合金表现出明显的温度软化效应，随着应变的增大，试验件温度升高，温度软化效应放大;(4)本构模型在大范围应变率内能精确预测动态力学性能。

In order to research dynamic mechanical behavior of 2024 aluminum, using electronic omnipotent test system and split Hopkinson pressure bar, in large-scale strain rate(10-4~103), tension and compression testing was done. Base on testing data, real stress-strain curves were drawn for different strain rate, and dynamic constitutive model was built. The results show that :(1)2024 aluminum has no strain rate sensitivity.(2)At high strain rate, toughness decreases and brittleness increases.(3)2024 aluminum has remarkable temperature soften effect. With the increase of strain, temperature of specimens is become higher, and temperature soften effect is amplified;(4) Constitutive model can accurately forcast dynamic mechanical behavior in large-scale strain rate.