M Emadi - Ph.D. Candidate, Department of Mechanical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
H Beheshti - Associate Professor, Department of Mechanical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
M Heidari-Rarani - Assistant Professor, Department of Mechanical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
F Haji Aboutalebi - Assistant Professor, Department of Mechanical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran

Thin-walled aluminum tubes have been widely used in automotive, aerospace and transportation industriesdue to their excellent properties. In this paper, quasi-static experimental study of circular aluminum 6061-T6 tube witha chamfer triggering mechanism was carried out by an Instron testing machine at a controlled displacement rate of 5mm/min. The crushing mode, load-displacement and specific energy absorption of aluminum tube were achieved toobtain specifications of Al6061-T6. For the circular cross-section, the type of crushing mode can be impressive onenergy absorption capacity and consequently crashworthiness characteristics. Also a triggering mechanism decreasesthe maximum force and deceleration to increase occupant safety in a crash situation. The predicted results would givemore information about aluminum tubes to make a better design in crashworthy components.

Aluminum tube, crashworthiness, crushing mode, energy absorption, quasi-static axial loading, triggering mechanism