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Analysis and optimization of energy absorbers of sandwich tubes with aluminium foam core under lateral loading

Baroutaji, Ahmad, Gilchrist, Michael, Smyth, David and Olabi, Abdul-Ghani orcid logoORCID: 0000-0002-7865-1757 (2015) Analysis and optimization of energy absorbers of sandwich tubes with aluminium foam core under lateral loading. International Journal of Impact Engineering, 82 . pp. 74-88. ISSN 0734-743X

Abstract
In this paper, the sandwich tubes, which consist of thin-walled circular tubes with aluminium foam core, were proposed as energy absorption devices. The sandwich tubes were laterally crushed under quasi-static loading conditions. Detailed finite element model, validated against existing experimental results, was developed using the explicit code (ANSYS-LSDYNA) to assess the energy absorption responses and deformation modes. Response surface methodology (RSM) was employed in parallel with the finite element models to perform both parametric studies and multi-objective optimization in order to establish the optimal configuration of the sandwich tube. Sampling designs of the sandwich tubes were constructed based on a D - optimal design of experiment (DOE) method. Factorial analysis was performed using the DOE results to investigate the influences of the geometric parameters on the responses of sandwich tubes. In addition, multi-objective optimization design (MOD) of the sandwich tubes is carried out by adopting a desirability approach. It was found that the tube with a minimum diameter of the inner layer and a maximum foam thickness are more suitable for use as energy absorbing components.
Metadata
Item Type:Article (Published)
Refereed:Yes
Uncontrolled Keywords:Sandwich tube; Energy absorbing systems; Lateral collapse; ANSYS-LSDYNA; Aluminium foam; Design of experiment; Factorial analysis
Subjects:Engineering > Mechanical engineering
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Mechanical and Manufacturing Engineering
Publisher:Elsevier
Official URL:http://dx.doi.org/10.1016/j.ijimpeng.2015.01.005
Copyright Information:© 2015 Elsevier
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:University of Aleppo
ID Code:20448
Deposited On:19 Jun 2015 08:55 by Ahmad Baroutaji . Last Modified 03 Feb 2021 13:15
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