Analysis of the high strain compression of open-cell foams

摘要

The high strain compression of open-cell foams is analysed, using a lattice model with tetrakaidecahedral cells. The buckling of elastic cell edges, under combined bending and torsional loads, is analysed, and the deformed shapes predicted. The stress-strain relation and Poisson's ratio are predicted for strains up to 70/100, for compression in the [001] and [111] directions of the BCC lattice.