Compressive deformation behavior and energy absorption characteristic of aluminum foam with elastic filler

来源期刊：中国有色金属学报(英文版)2004年第5期

论文作者：程和法 黄笑梅 薛国宪 李剑荣 韩福生

文章页码：928 - 933

Key words：open cell aluminum foam; silicate rubber; compressive property; energy absorption capacity

Abstract: An open-cell aluminum foam filled with silicate rubber (AFFSR) was fabricated by infiltration of the liquid silicate rubber into the open-cell aluminum foam. The experiments were carried out to investigate the compressive behavior and energy absorption characteristics of the material. It is found that the stress—strain response of the AFFSR exhibits five regions including two plateau regimes, which is quite different from the stress—strain curves of many unfilled metallic foams that usually exhibit three distinct regions. The plastic deformation of the AFFSR is prolonged because of the filled silicate rubber, compared with the aluminum foam without such a filler. The AFFSR also exhibits a higher energy capacity than the aluminum foam without filler. Additionally, for the prolonged plateau region in the stress—strain curve, the energy absorption efficiency of the AFFSR maintains a high level (above 0.6) over a wide strain range from 3% to 60%.