Abstract
Dynamic in-plane compressive properties of aluminum alloy honeycombs were experimentally examined. Several cell patterns filled with epoxy resin were examined in order to study how to increase the plateau stress and strain energy density (absorbed energy) of honeycombs. The main reason for the increase of plateau stress and strain energy density was discussed using images captured by a high speed video camera. Deformation modes of honeycomb cells were important for increasing the plateau stress and strain energy density. The effects of intervals and compression direction were examined.