Abstract
Crushing behavior of closed cell aluminum (Al) alloy foam was studied. Al-alloy foam was represented by an array of closely packed large cubic cells truncated at the corners by small spherical cells. The membrane stretching and bending energy associated with the crushing of a cell wall in conjunction with minimum energy principle in plasticity was considered in the analytical formulation. The analytical solutions of cubic-spherical lattice for crushing resistance were found to be in good agreement with the results of FE analysis. Finally, those were compared with available crushing resistances of commercial Al-alloy foams such as Al-Si-Cu-Mg, CYMAT, ALCAN and IFAM foams.
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