The study and optimization of the behavior and energy absorbed in the frontal impact by a rectangular metal workpiece with an Origami core

”Lucian Blaga” University of Sibiu, Faculty of Engineering, Str. Emil Cioran Nr. 4, 550025, Romania

^* Corresponding author: robert.bleotu@ulbsibiu.ro

Abstract

The bumper systems (beams and face bars) are parts of the car body structure, one of the most important components of an auto vehicle because of its role in absorbing the energy of an impact by deformation. The main objective of this paper is to study, optimize the built shape of the frontal members beams used in the endurance structure of motor vehicles in terms of their ability to absorb internal energy resulting from a frontal impact under the principles of sustainability. The study combines the classical technology used in the construction of vehicles with, the Origami Engineering” technique, which is generally used by NASA, but also by engineers in other fields: aeronautics, nanotechnology or medical technique. Simulation analyses were performed using the finite element on different types of thin-walled metal tubes, but also an origami structure.