Impact energy dissipation characteristics of thin-walled cylinders

Thin-walled, closed-end cylindrical specimens of both aluminium and steel alloys were tested under axial and diametrical compression loading in static as well as in impact conditions. The load-deflection behaviour of the specimens were recorded and the modes of collapse were observed. The two loading conditions were found to give the same pattern of buckling deformation, although the energy absorbed under impact loading was higher. The main purpose of results for circular cylinders under axial compression is to give a basis of comparison for the cylinders under diametrical compression and also for cylinders filled with liquid (soft drink) or sand under either longitudinal or lateral compression. In all these cases absorption was achieved.