中文摘要：

利用分离式霍布金森压杆（SHPB）和电子万能试验机研究了不同密度的开孔与闭孔泡沫铝在动，准静态下的压缩力学性能，结果表明：开孔与闭孔两种泡沫铝静态和动态压缩应力-应变曲线均具有多孔泡沫材料明显的三阶段特征，即线弹性段，塑性屈服平台段及致密段，相对密度对泡沫材料屈服强度和流动应力和很大影响，在静，动态响应下泡沫铝的应力均随相对密度的增大而增大，通过对本实验结果进行拟合，得出泡沫铝强度与相对密度的关系式常数，开孔泡沫铝的强度和流动应力均明显升高，表现出应变率敏感性，而闭孔泡沫铝对应变率不太敏感或应变敏感程度较差。

英文摘要：

Uniaxial compressive properties of two kinds of aluminum foam including open-cell and closed-cell foams with a variety of densities have been studied experimentally in this paper. The dynamic compression tests are made at strain rate （10^2-10^3s^-1） by Split Hopkinson Pressure Bar （SHPB）. The quasi-static tests are made by CMT machine. It has been found that all the compressive stress-strain curves of aluminum foams have three deforming regions such as elasticity region, plastic collapsing region and densification region. Relative density mainly affects the compressive properties （yield strength）, and the yield strength of aluminum foam increases with increasing relative density, and constants in expressions of strength of foams varying with relative density are given. For the open cell foams the stress is sensitive to the strain rate, the yield strength of closed cell foams exhibits little or no strain rate sensitivity.