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dc.contributor.authorBennett, Garethen
dc.contributor.authorKennedy, Johnen
dc.date.accessioned2019-09-11T15:36:59Z
dc.date.available2019-09-11T15:36:59Z
dc.date.issued2019en
dc.date.submitted2019en
dc.identifier.citationJohn Kennedy, Lara Flanagan, Luke Dowling, Gareth J. Bennett, Henry Rice, and Daniel Trimble, The Influence of Additive Manufacturing Processes on the Performance of a Periodic Acoustic Metamaterial, International Journal of Polymer Science, 2019, 2019, 1-11en
dc.identifier.issn1687-9422en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/89483
dc.descriptionPUBLISHEDen
dc.description.abstractAdvancements in 3D print technology now allow the printing of structured acoustic absorbent materials at the appropriate microscopic scale and sample sizes. The repeatability of the fundamental cell unit of these metamaterials provides a pathway for the development of viable macro models to simulate built-up structures based on detailed models of the individual cell units; however, verification of such models on actual manufactured structures presents a challenge. In this paper, a design concept for an acoustic benchmark metamaterial consisting of an interlinked network of resonant chambers is considered. The form chosen is periodic with cubes incorporating spherical internal cavities connected through cylindrical openings on each face of the cube. This design is amenable to both numerical modelling and manufacture through additive techniques whilst yielding interesting acoustic behaviour. The paper reports on the design, manufacture, modelling, and experimental validation of these benchmark structures. The behaviour of the acoustic metamaterial manufactured through three different polymer-based printing technologies is investigated with reference to the numerical models and a metal powder-based print technology. At the scale of this microstructure, it can be seen that deviations in surface roughness and dimensional fidelity have a comparable impact on the experimentally measured values of the absorption coefficient.en
dc.format.extent1-11en
dc.language.isoenen
dc.relation.ispartofseriesInternational Journal of Polymer Scienceen
dc.relation.ispartofseries2019en
dc.rightsYen
dc.subject3D print technologyen
dc.subjectAcoustic metamaterialen
dc.titleThe Influence of Additive Manufacturing Processes on the Performance of a Periodic Acoustic Metamaterialen
dc.typeJournal Articleen
dc.contributor.sponsorEuropean Union (EU)en
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/bennettgen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/jkenned5en
dc.identifier.rssinternalid206798en
dc.relation.ecprojectidinfo:eu-repo/grantAgreement/EC/FP7/723367
dc.rights.ecaccessrightsopenAccess
dc.contributor.sponsorGrantNumber723367en
dc.subject.TCDThemeNanoscience & Materialsen
dc.subject.TCDThemeSmart & Sustainable Planeten
dc.subject.TCDTagMetamaterialen
dc.identifier.rssurihttps://www.hindawi.com/journals/ijps/2019/7029143/en
dc.identifier.orcid_id0000-0002-1621-7533en
dc.status.accessibleNen


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