Type

Journal Article

Authors

Abdul-Ghani Olabi
David Smyth
Michael Gilchrist
Ahmad Baroutaji

Subjects

Engineering

Topics
mechanical engineering ansys lsdyna sandwich tube aluminium foam energy absorbing systems lateral collapse factorial analysis design of experiment

Analysis and optimization of energy absorbers of sandwich tubes with aluminium foam core under lateral loading (2015)

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.
Collections Ireland -> Dublin City University -> Publication Type = Article
Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Engineering and Computing: School of Mechanical and Manufacturing Engineering
Ireland -> Dublin City University -> Subject = Engineering: Mechanical engineering

Full list of authors on original publication

Abdul-Ghani Olabi, David Smyth, Michael Gilchrist, Ahmad Baroutaji

Experts in our system

1
Abdul-Ghani Olabi
Dublin City University
Total Publications: 55
 
2
David Smyth
University College Dublin
Total Publications: 3
 
3
M. D. Gilchrist
University College Dublin
Total Publications: 172
 
4
Ahmad Baroutaji
Dublin City University
Total Publications: 7