Effect of Cell Size on the Dynamic Compressive Properties of Aluminum Alloy Foams

Abstract:

The static and dynamic compressive behaviors of open-cell aluminum alloy foams with virtually the same relative density of 0.4 were investigated. The foams have different cell sizes (0.5mm, 1.5mm, 2.5mm) but similar cell morphology and microstructure. The yield strength of these foams was characterized as a function of strain rate and cell morphology. The experimental results indicated that the mechanical responses of foams are sensitive to strain rate, and dependent of the cell size. The present results are compared in details with recent findings obtained from the aluminum foams.

• Periodical: Solid State Phenomena (Volumes 124-126)
• Pages: 1317-1320
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.124-126.1317
• Online since: June 2007
• Authors: Zhi Hua Wang, Hong Wei Ma, Long Mao Zhao, Gui Tong Yang
• Keywords: Cell Size, Dynamic Compressive Properties, Metallic Foam, Strain Rate

References

[1] T G Nieh, K Higashi, J Wadsworth et al. Material Science and Engineering. A283 (2000), P. 105.

[2] P R Onck, E W Andrews, L J Gibson. International Journal of Mechanical Sciences. 43 (2001) P. 681.

[3] E W Andrews, G Gioux, P R Onck, et al. International Journal of Mechanical Sciences. 43 (2001), P. 701.

[4] T Mukai, H kanahashi, T Miyoshi et al. Scripta Materialia. 40 (1999) P. 921.

[5] S. Sathiamoorthy. Compressive failure of composites. PhD Thesis, Department of Engineering , University of Cambridge, (1997).

[6] L J Gibson, M F Ashby. Cellular Solids, Structure and Properties. 2nd edn., Cambridge University Press, Cambridge, UK (1997).

[7] J Banhart, J Baumeister. J. Mater. Sci. Vol33(1998), P. 1431.

[8] V S Deshpande, N A Fleck. International Journal Impact Engineering., 24(2000) P. 277.