Enhancement of Energy Absorption for Crashworthiness Application: Octagonal-Shape Longitudinal Members
Samer F1, Abdulbasit Abdullah2, Jamal O. Sameer3
1Samer F, Department of Mechanical Engineer, Alanbar University, Engineering, Alanbar-Ramadi, Iraq,
2Abdulbasit Abdullah, Department of Mechanical Engineer, University of Tenaga Nassional, College of Engineering, Kuala Lumpur, Malaysia.
3Jamal O. Sameer, Department of Mechanical Engineer, University of Tenaga Nasional, College of Engineering, Kuala Lumpur, Malaysia.
Manuscript received on January 11, 2015. | Revised Manuscript Received on January 12, 2015. | Manuscript published on January 18, 2015. | PP: 01-09 | Volume-2 Issue-2, January 2015.
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This study examines the crashworthiness performance of the octagonal thin wall tube, based on numerical simulation. The purpose is to find the optimal design with the lowest weight and best crashworthiness parameters in order to protect the passengers’ life. Octagonal members with various trigger mechanisms (circular, square and elliptical triggers) with different distributions from the free end of tube were compared with mild steel A36 tube of 2 mm wall thickness, filled with hollow aluminium foam. The filled steel tube has given better results by enhancing the energy absorption by 15% and 36.8 in case of direct and oblique impact respectively .While The better result has given by enhancing CFE by 30%and 9.9% in case of direct and oblique impact respectively.
Keywords: Direct and oblique impact load, thin wall, energy absorption, CFE, Trigger and aluminum foam