Analysis of the elastic properties of open-cell foams with tetrakaidecahedral cells

摘要

The elastic constants of an open-cell foam model, having tetrakaidecahedral cells on a BCC lattice, were found, The Young's modulus, shear modulus and Poisson's ratio were derived, as functions of the edge cross section and the foam density, by considering the bending, twisting and extension of the cell edges. If edge bending were the only mechanism the moduli would vary with the square of the foam density.