开孔泡沫铝材料静态压缩力学性能与吸能特性

摘要

Mechanical properties and energy absorption characteristic of the open cell Al-Cu-Mg alloy foams under static compression have been studied by an experiment. The micro-deformation features under static ( 1.0×10-3 s-1) compression condition have been obtained.The influence laws of cell size and material stack on stress-strain model and energy absorption per unit volume W have been analyzed through use of W to represent energy absorption per unit volume.%实验研究了开孔泡沫铝材料静动态压缩过程的力学性能和吸能特性.得到了材料在静态压缩下(1.0×10-3s-1)的微观变形特点.用单位体积的吸能W来表征材料的吸能特性,分析了在静态条件下孔径和材料叠加对泡沫铝材料的应力-应变关系和单位体积吸能的影响规律.