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dc.contributor.authorArjunan, Arun
dc.contributor.authorSingh, Manpreet
dc.contributor.authorBaroutaji, Ahmad
dc.contributor.authorWang, Chang
dc.date.accessioned2020-05-21T11:12:12Z
dc.date.available2020-05-21T11:12:12Z
dc.date.issued2020-05-18
dc.identifier.citationArjunan, A., Singh, M., Baroutaji, A. and Wang, C. (2020) Additively manufactured AlSi10Mg inherently stable thin and thick-walled lattice with negative Poisson’s ratio, Composite Structures. https://doi.org/10.1016/j.compstruct.2020.112469en
dc.identifier.issn0263-8223en
dc.identifier.doi10.1016/j.compstruct.2020.112469en
dc.identifier.urihttp://hdl.handle.net/2436/623223
dc.descriptionThis is an accepted manuscript of an article published by Elsevier in Composite Structures on 18/05/2020, available online: https://doi.org/10.1016/j.compstruct.2020.112469 The accepted version of the publication may differ from the final published version.en
dc.description.abstractLiterature on the mechanical performance of additively manufactured (AM) negative Poisson’s ratio (−ν) structures has been primarily focused on beam-based re-entrant structures with chevron crosslinks. The walled variants of this architecture have been shown to exhibit lateral instability. This is where a layered framework can be advantageous as they provide increased lateral stability. Much less is known regarding the behaviour of such architecture, let alone their thin/thick-walled variants. This study explores the influence of design parameters namely wall thickness (t) and angle (θ) on the mechanical performance of thin and thick-walled inherently stable −ν lattices. The design is achieved through conceiving linearly arranged AlSi10Mg re-entrant unit-cells while discarding the traditional chevron crosslinks. The printed prototypes were experimentally tested and response surface (RS) models were generated to study the parametric influence on the elastic modulus (E), compressive strength (σc), failure strain (εf), − ν and relative density (ρr). The results demonstrate that both thin- and thick-walled structures exhibit ν of -0.108 to -0.257 despite the interaction effects between t and θ. The elastic modulus can be increased by either increasing t or θ without considering the interaction effects at 0.3 ≤ t ≤ 1 mm and 45° ≤ θ ≤ 85°. This study presents a new understanding regarding the fabrication and performance of re-entrant structures by AM.en
dc.formatapplication/pdfen
dc.languageen
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttps://www.sciencedirect.com/science/article/pii/S0263822320305201?via%3Dihuben
dc.subjectadditive manufacturingen
dc.subjectselective laser meltingen
dc.subjectAlSi10Mgen
dc.subjectthin and thick walleden
dc.subjectnegative Poisson’s ratioen
dc.titleAdditively manufactured AlSi10Mg inherently stable thin and thick-walled lattice with negative Poisson’s ratioen
dc.typeJournal articleen
dc.identifier.journalComposite Structuresen
dc.date.updated2020-05-18T19:51:18Z
dc.date.accepted2020-05-12
rioxxterms.funderUniversity of Wolverhamptonen
rioxxterms.identifier.projectUOW21052020AAen
rioxxterms.versionAMen
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
rioxxterms.licenseref.startdate2021-05-18en
dc.source.beginpage112469
dc.source.endpage112469
dc.description.versionPublished version
refterms.dateFCD2020-05-21T10:51:42Z
refterms.versionFCDAM


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