Abstract
In-plane dynamic compressive properties of aluminum alloy honeycombs were examined experimentally. Six types of cell patterns filled with epoxy resin were proposed in order to increase plateau stresses and absorbed energies of honeycombs. Three cell patterns of them increased the plateau stresses and absorbed energies, but the others did not affect them. The main reason for showing such difference was discussed using images captured by a high speed video camera. It was important for deformation modes of honeycombs to increase the plateau stresses and absorbed energies. Only when the restricted compressive (RC) modes were formed, the plateau stresses and absorbed energies could be increased slightly. However, it was difficult to increase significantly the plateau stresses and absorbed energies using the specified filled cell patterns used.
