Type

Journal Article

Authors

A. G. Olabi
D. Smyth
M. D. Gilchrist
A. Baroutaji

Subjects

Engineering

Topics
energy absorbing systems design of experiment lateral collapse ansys lsdyna sandwich tube aluminium foam finite element model factorial analysis

Analysis and optimization of sandwich tubes energy absorbers 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 -> University College Dublin -> Mechanical & Materials Engineering Research Collection
Ireland -> University College Dublin -> School of Mechanical and Materials Engineering

Full list of authors on original publication

A. G. Olabi, D. Smyth, M. D. Gilchrist, A. 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