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    Crush analysis and multi-objective optimization design for circular tube under quasi-static lateral loading

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    Authors
    Baroutaji, A.
    Gilchrist, M.D.
    Smyth, D.
    Olabi, A.G.
    Issue Date
    2014-11-01
    
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    Abstract
    This paper addresses the energy absorption behaviour and crashworthiness optimisation of short length circular tubes under quasi-static lateral loading. Finite element (FE) models were developed using implicit FE code ANSYS to simulate the deformation behaviour and energy absorption of circular tube under lateral loading. These FE models were validated using experimental techniques to ensure that they can predict the responses of circular tube with sufficient accuracy. Response surface methodology (RSM) for design of experiments (DOE) was used in conjunction with finite element modelling to evaluate systematically the effects of geometrical parameters on the energy absorption responses of laterally crushed circular tubes. Statistical software package, design-expert, was used to apply the response surface methodology (RSM). The energy absorbing responses (specific energy absorbing capacity (SEA) and collapse load (F)) were modelled as functions of geometrical factors (tube diameter, tube thickness, and tube width). These developed functions allow predictions of the energy absorption response of laterally crushed tubes, based on their geometry parameters. Based on DOE results, parametric studies were conducted to generate design information on using the laterally crushed tubes in energy absorbing systems. Finally, the approach of multi-objective optimization design (MOD) was employed to find the optimal configuration of the proposed energy absorption structures. Design-expert software, which employs the desirability approach as optimization algorithm, was used for solving the MOD problem.
    Citation
    Baroutaji, A., Gilchrist, M. D., Smyth, D., Olabi, A. G. (2015) Crush analysis and multi-objective optimization design for circular tube under quasi-static lateral loading, Thin-Walled Structures, 86, pp. 121-131. doi: 10.1016/j.tws.2014.08.018
    Journal
    Thin-Walled Structures
    DOI
    10.1016/j.tws.2014.08.018
    Additional Links
    http://linkinghub.elsevier.com/retrieve/pii/S0263823114002602
    Type
    Journal article
    Language
    en
    Description
    This is an accepted manuscript of an article published by Elsevier in Thin-Walled Structures on 01/11/2014, available online: https://doi.org/10.1016/j.tws.2014.08.018 The accepted version of the publication may differ from the final published version.
    ISSN
    02638231
    Sponsors
    University of Aleppo
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.tws.2014.08.018
    Scopus Count
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