In-situ Quasistatic Compression and Microstructural Characterization of Aluminum Foams of Different Cell Topology
Metallic foams have good potential for lightweight structures for impact and blast mitigation. Therefore it is important to find out the optimized foam structure (i.e. cell size, shape, relative density, and distribution) to maximise energy absorption. In this paper, quasistatic compression and microstructural characterization of closed-cell aluminium foams of different pore size and cell distributions have been carried out. We present results for two different aluminium metal foams of density 0.49-0.51 g/cc and 0.31- 0.34 g/cc respectively that have been tested in quasi-static compression. The influence of cell geometry and cell topology on quasistatic compression behaviour has been investigated using optical microscope and computed tomography (micro-CT) analysis. It is shown that the deformation is not uniform in the structure and collapse begins at the weakest point.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1096982Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2391
 H.P. Degischer, B.E. Kriszt, “Handbook of Cellular Metals: Production, Processing Applications,” in Willy-VCH, 2002.
 E. Raj, V. Parameswaran and B.S.S. Daniel, “Comparison of quasi-static and dynamic compression behavior of closed-cell aluminum foam,” Materials Science and Engineering, vol. A.526 (1-2), 2009, pp. 11-155.
 E. Raj and B.S.S. Daniel, “Customization of closed-cell aluminum foam properties using design of experiments,” Materials Science and Engineering, vol. A.528 (4-5), 2011, pp. 11-155.
 P.J. Tan, S.R. Reid, J.J. Zou and S. Li, “Dynamic compressive strength properties of aluminium foams. Part II - 'shock' theory and comparison with experimental data and numerical models,” Journal of the Mechanics and Physics of Solids, vol. 53(10), 2005, pp. 2206-2230.
 L.J. Gibson and M.F. Ashby, “Cellular solids: structure and properties,” Cambridge university press. 1999.
 H Toda , T Kobayashi,N. Niinomi,T Ohgaki, M. Kobayshi, N. Kuroda, and Y. Aruga, “Quantitative assessment of microstructure and its effects on compression behaviour of aluminum foams via high-resolution synchrotron X-ray tomography,” Metallurgical and Materials Transactions, vol. 37(4), 2006, pp.1211-1219.
 P. Kenesei, C. Kádár, Z. Rajkovits, and J. Lendvai, “The influence of cell-size distribution on the plastic deformation in metal foams,”. Scripta Materialia, vol. 50(2), 2004, pp. 295-300.
 C. Kádár, E. Maire, A. Borbély, G. Peix, J. Lendvai, and Z. Rajkovits “X-ray tomography and finite element simulation of the indentation behavior of metal foams,”. Materials Science and Engineering, vol. A, 387-389 (1-2), 2004, pp.321-325.
 R.P. Merrett, G.S. Langdon, and M.D. Theobald, “The blast and impact loading of aluminium foam,” Materials and Design, vol. 44, 2003, pp. 311-319.
 M.F. Ashby, A.G. Evans, N.A. Fleck., L.J. Gibson, “Metal Foams: a design guide,” Huchinson, J.W. & Wadley, H.N.G. Butterworth- Heinemann. Publications, 2000.
 M.F. Ashby, R.F. M. Medalist, “The mechanical properties of cellular solids,” Metallurgical Transactions, vol. A, 14(9), 1983, pp.1755-1769
 E. W .Andrews, C. Gioux, P.R. Onck and L.J. Gibson, “Size effect in ductile cellular solids, Part II: experimental results,” Int. J. Mech. Sci. vol. 43, 2001, pp.701–713.
 C. Chen, N.A. Fleck Size effects in the constrained deformation of metallic foams, Journal of the Mechanics and Physics of Solids, vol. 50, 2002, pp.955 – 97.
 A.F. Bastawros, H.B. Smith and A.G. Evans, “Experimental analysis of deformation mechanics of closed-cell aluminium alloy foam,” J. of Mechanics and Physics of Solids, vol. 48, 2000, pp.301-322.
 P. Kenesi, C. Kadar, Z. Rajkovits and J. Lendvai, “The influence of cell-size distribution on the plastic deformation in metal foams” Scripta Materialia, vol. 50, 2004, pp.295-300.
 X. Cao, Z. Wang, H. Ma and L. Zhao, “Effects of cell size on compressive properties of aluminium foam,” Trans. Nonferrous Met. Of China, vol. 16, 2006, pp.351-356.
 M.R. Said and C. Tan, “The response of Aluminium Foams under Quasi-static loading,” Chiang Mai J. Csi., Vol. 35(2), ,2008, 241-249
 A.E. Markaki and T.W. Clyne, “The effects of cell wall microstructure on the deformation and fracture of aluminium-based foams,” Acta Materilia, vol. 49, 2001, pp.1677-1686.
 I. Jeon, K. Katou, T. Sonoda, T. Asahina, and K.J. Kang, “Cell wall mechanical properties of closed-cell Al foam,” Mechanics of Materials, vol. 41(1), 2009, pp.60-73.
 Y. Mu, G.Yao,L. Liang , H. Lou and G. Zu , “ Deformation of close-cell aluminium foam in compression” Scriptal Materilia, vol.63, 2010, pp. 629-632.
 D. Ruan, G. Lu, F.L. Chen, E. Siores, “ Compressive behavior of aluminium foams at low and medium strain rates” , J. Composite Structures, vol. 57, 2002, pp. 331-336.
 Y. Sugamura , J. Meyer, M.Y. He, H. Bart-smith, J. Grenstedt and A.G. Evans, “On the mechanical performance of closed cell Al alloy foam.” Acta Materilia, vol.45 (12), 1007, pp.5245-5259.
 Q. Zhang, P.D. Lee, R. Singh, G. Wu and T.C. Lindley, “Micro-CT characterization of structural features and deformation behavior of fly ash/aluminium syntactic foam,” Acta Materialia, vol. 57, 2009, pp.3001- 3011.