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)


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
Number of pages6
ISBN (Print)9783038350682
Publication statusPublished - 2014
EventAustralasian Conference on Computational Mechanics 2013 - Sydney, Australia
Duration: 3 Oct 20134 Oct 2013
Conference number: 1st (this link contains a statement of peer review) (preface)

Publication series

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


ConferenceAustralasian Conference on Computational Mechanics 2013
Abbreviated titleACCM 2013
Internet address


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

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