An application of bi-directional evolutionary structural optimisation for optimising energy absorbing structures using a material damage model

Daniel Stojanov, Brian G. Falzon, Xinhua Wu, Wenyi Yan

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

2 Citations (Scopus)

Abstract

The Bi-directional Evolutionary Structural Optimisation (BESO) method is a numerical optimisation method developed for use in finite element analysis. This paper presents a application of the BESO method to optimise the energy absorbing capability of metallic structures. The optimisation objective is to evolve a structural geometry of minimum mass while ensuring that the kinetic energy of an impacting projectile is reduced to a level which prevents perforation. Individual elements in a finite element mesh are deleted when a prescribed damage criterion is exceeded. An energy absorbing structure subjected to projectile impact will fail once the level of damage results in a critical perforation size. It is therefore necessary to constrain an optimisation algorithm from producing such candidate solutions. An algorithm to detect perforation was implemented within a BESO framework which incorporated a ductile material damage model.
Original languageEnglish
Title of host publicationAdvances in Computational Mechanics
EditorsGrant Steven, Qing Li, Zhongpu (Leo) Zhang
Place of PublicationPfaffikon Switzerland
PublisherTrans Tech Publications
Pages836-841
Number of pages6
ISBN (Print)9783038350682
DOIs
Publication statusPublished - 2014
EventAustralasian Conference on Computational Mechanics 2013 - Sydney, Australia
Duration: 3 Oct 20134 Oct 2013
Conference number: 1st
http://web.aeromech.usyd.edu.au/ACCM2013/ (this link contains a statement of peer review)
https://www.scientific.net/AMM.553.-1.pdf (preface)

Publication series

NameApplied Mechanics and Materials
PublisherTrans Tech Publications
Volume553
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

ConferenceAustralasian Conference on Computational Mechanics 2013
Abbreviated titleACCM 2013
CountryAustralia
CitySydney
Period3/10/134/10/13
Internet address

Keywords

  • Structural optimisation
  • Finite element analysis
  • Energy absorption
  • Damage modelling
  • Projectile damage

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