Title of article
Selecting the most efficient cross-section of multi-cell hexagonal tube under axial dynamic loading based on crashworthiness criteria
Author/Authors
Sistani ، Reza Department of Mechanical Engineering - Faculty of Industrial and Mechanical Engineering - Islamic Azad university, Qazvin Branch , Mousavi Mashhadi ، Mahmoud Department of Mechanical Engineering - Faculty of Industrial and Mechanical Engineering - Islamic Azad university, Qazvin Branch , Mohammadi ، Younes Department of Mechanical Engineering - Faculty of Industrial and Mechanical Engineering - Islamic Azad university, Qazvin Branch
From page
91
To page
102
Abstract
The purpose of this paper is to select the optimal section of different cross-sectional multi-cell hexagonal tubes under axial dynamic loads in three categories of internal edge thicknesses. The explicit non-linear FE code LS-DYNA is employed for numerical simulation. The results of crashworthiness performance criteria are obtained for various alternatives of configurations. TOPSIS method introduces the rank of different sections. The most effective section in the three categories is selected. In the continuation of the research, the straight inner sides of small hexagons were replaced with semi-elliptic and semicircle, but with respect to the symmetry of the larger hexagon diameter and equal perimeter size in order to evaluate the crashworthiness criteria in the selected section.
Keywords
Dynamic axial load , Crashworthiness criteria , Multi , cell hexagonal tube , Specific energy absorption , TOPSIS method
Journal title
International Journal of Nonlinear Analysis and Applications
Journal title
International Journal of Nonlinear Analysis and Applications
Record number
2773714
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