Abstract
In this study, we investigate the influence of closed faces on the compressive strength of open-cell metallic foams computationally. To this end, a perfect model for Kelvin open-cell foams is extended by introducing a closed face into the cubic unit cell. Finite element analysis using a homogenization approach is perfonned for closed face models as well as for perfect models. It is found that the introduction of closed faces into the perfect model hardly increases the compressive strength of Kelvin open-cell foams, and mainly causes the increase of relative density. The applicability of the developed closed face model is verified by comparison with semi-empirical relations.
