Enhancement of energy absorption in a closed-cell aluminum by the modification of cellular structures

Journal Article · Fri Oct 22 00:00:00 EDT 1999 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(99)00255-9· OSTI ID:20001705

Miyoshi, T; Itoh, M; Mukai, T; Kanahashi, H; Kohzu, H; Tanabe, S; Higashi, K

Recently, there is a high interest in using light-weight metallic foams (e.g., Al and Mg) for automotive, railway and aerospace applications where weight reduction and improvement in comfort are needed. Metallic foams also have a potential for absorbing impact energy during the crashing of a vehicle either against another vehicle or a pedestrian. In this study, enhancement of absorption energy in a closed-cell structure has been performed by an increase in the aspect ratio of cell-wall thickness against the cell-edge length with the reduction of cell size. The absorbed energy in a modified foam is estimated comparing with that in a conventional ALPORAS with the same relative density.

• Research Organization: Shinko Wire Co., Ltd., Izumisano, Osaka (JP)
• OSTI ID: 20001705
• Journal Information: Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 10 Vol. 41; ISSN SCMAF7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM BASE ALLOYS
CALCIUM ALLOYS
CELL WALL
ENERGY ABSORPTION
FOAMS
IRON ADDITIONS
MECHANICAL PROPERTIES
MICROSTRUCTURE
SIZE
TITANIUM ALLOYS