“…Many works have been performed to study the rate effect in the mechanical behavior of the metallic foams, such as the uniaxial failure stress, the plateau stress, the densification behavior and the energy absorption capacity (Zhao,1997;Deshpande and Fleck, 2000b;Demiray et al, 2006;Yu et al, 2006;Zhou et al, 2012aZhou et al, , 2012bZhou et al, , 2014Castroa et al, 2013;Alia et al, 2014;Goel et al, 2014;Wang et al, 2014;Kishimoto et al, 2014;Caprino et al, 2015;Storm et al, 2015;Su et al, 2015). Nevertheless, little literature has involved the experimental failure surface, especially the dynamic failure surface which is very important for the engineering applications of the metallic foams.…”