Energy Absorption Characteristics of Aluminium Alloy Tubes Subjected to Quasi-static Axial Load

In the current numerical study, axial quasi-static crashworthiness performance of circular crash-boxes having the same geometry but made up of various frequently used wrought aluminium alloys is investigated using ABAQUS/Explicit. All the considered crash-boxes showed a stable progressive axi-symmetric collapse. Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), one of the most widely used Multi-Criteria Decision-Making (MCDM) techniques, is then employed to determine the most suitable aluminium alloy for the application of a crash-box in an automobile. It is found that, out of the considered aluminium alloys AA 6060 T4 is the most suitable aluminium alloy to be used as a crash-box in an automobile.