Impact strength on thin-walled tubes

Abstract

Energy absorber has found common usage in application such as vehicle, aircraft and at base of lift shaft. Circular thin-walled tubes had been years for functioning as efficient energy absorbing devices but as decompose material-filled circular thin walled tube is a new whole perspective as energy absorber for energy absorbing devices to improve the opposing effects of impacts .So this research were to open decompose material-filled tube to new door as energy absorber in common application usage. The primary aim for this research was to generate research information and design information on the impact behavior and energy absorption capability of empty circular tubes and decompose material-filled circular tube to facilitate their application in energy absorbing system. This conducted axial quasi static bending test to investigate the energy absorption characteristic and deformation behaviour of empty hollow, rice husk filled and saw dusk filled circular thin walled tube and make comparisons with each other. The results showed that energy absorption capacity and crush force efficiency of the thin-walled circular tube subjected to axial loading depend on the filler in the tube. Results for empty hollow tube, rice husk filled tube and saw dusk filled tube were compared, and the experiment confirms that energy absorption of saw dust filled tube is better than rice husk filled tube and empty hollow tube. The relationship between displacement and force, average force and total energy absorption properties were obtained. Overall, this report highlights the decompose materials- filled of circular tubes for new type of filler for absorbing impact energy.