Ali Taherkhani - Mechanical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), ۴۲۴ Hafez Avenue,Tehran, Iran
Mohammad Fafarpour Alamdari - Aerospace Engineering Department and Center of Excellence in Computational Aerospace Engineering, Amirkabir Universityof Technology (Tehran Polytechnic), ۴۲۴ Hafez Avenue, Tehran, Iran
Reza Hedayati - Mechanical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), ۴۲۴ Hafez Avenue,Tehran, Iran
Ali Naeim abadi - Polymer Engineering and Color Technology Department, Amirkabir University of Technology (Tehran Polytechnic), ۴۲۴Hafez Avenue, Tehran, Iran

In this study, the energy absorption capacity and crushstrength of cylindrical thin-walled structures areinvestigated using nonlinear Finite Element code LSDYNA.For the thin-walled structure, A6063 aluminum isused and its behavior is modeled using power-law equation.In order to investigate the performance of tubes in a betterway, the simulation was also carried out on structures withother types of cross-sections such as triangle, square,rectangle, and hexagonal. It was seen that the circular crosssectionhas the highest energy absorption capacity and crushstrength while they are the lowest for the triangular crosssection.It is concluded that increasing the number of sidesincreases the energy absorption capacity and the crushstrength.

Energy Absorption - Crush Strength - Thin Walled Structures - Low Velocity Impact - Dynamic Progressive Buckling - LS-DYNA FEM Codes