Impact Deformation of Thin-Walled Circular Tube Filled with Aluminum Foam in Lateral Compression

• Published in: Journal of Solid Mechanics and Materials Engineering Vol. 3; no. 1; pp. 64 - 71
• Main Authors: KOBAYASHI, Hidetoshi, HORIKAWA, Keitaro, OGAWA, Kinya, HORI, Masahiro
• Format: Journal Article
• Language: English
• Published: The Japan Society of Mechanical Engineers 2009
• Subjects: Absorbed Energy; Aluminum; Aluminum Foam; Dynamic Load Measurement; Impact; Lateral Compressive Deformation; Thin Walled Circular Tube
• ISSN: 1880-9871; 1880-9871
• DOI: 10.1299/jmmp.3.64

In this study, the impact deformation of thin-walled circular tubes filled with aluminum foam in lateral compression was investigated using a special load cell for long time measurement and a high-speed video camera to check the displacement of specimens. It was found that the absorbed energy up to the deformation of 60% of the specimen diameter obtained from impact tests is greater than that obtained in static tests, because of strain rate dependency of aluminum foam. The loaddisplacement curve of circular tubes with aluminum foam just inserted was consistent with the sum of the curves individually obtained. In both dynamic and static tests, however, the load of the tube with the foam inserted and glued by adhesive resin became larger than the sum of the individual loads, because of the interaction between circular tubes and aluminum foam cores.