Abstract

Abstract The influence of structural and microstructural properties on the compressive properties of closed-cell aluminum foam is investigated. The presence of brittle intermetallic, Al 13 Fe 4 in the cell wall matrix modifies the compression behavior in the plateau region, where decrease in stress values is observed due to the brittle nature of cell wall. However, particles of higher aspect ratio in cell wall increase the stability of foam. Gibson and Ashby model results showed more disparity with the experimental results owing to uncertainty in determining the value of φ at higher density, which is the fraction of solid contained in the cell edges. Multilinear regression model for the prediction of mechanical and energy absorption properties is developed by considering the contribution of pore diameter and cell anisotropy ratio along with relative density of foam. In this system it is found that the cell edge effects are more significant compared to the cell face effects.

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