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dc.contributor.authorVenås, Jon Vegarden_GB
dc.contributor.authorKvamsdal, Tronden_GB
dc.contributor.authorJenserud, Tronden_GB
dc.date.accessioned2018-04-10T15:34:23Z
dc.date.accessioned2018-08-01T10:35:25Z
dc.date.available2018-04-10T15:34:23Z
dc.date.available2018-08-01T10:35:25Z
dc.date.issued2018
dc.identifier.citationVenås JV, Kvamsdal T, Jenserud T. Isogeometric Analysis of Acoustic Scattering using Infinite Elements. Computer Methods in Applied Mechanics and Engineering. 2018;335:152-193en_GB
dc.identifier.urihttp://hdl.handle.net/20.500.12242/863
dc.identifier.urihttps://ffi-publikasjoner.archive.knowledgearc.net/handle/20.500.12242/863
dc.descriptionVenås, Jon Vegard; Kvamsdal, Trond; Jenserud, Trond. Isogeometric Analysis of Acoustic Scattering using Infinite Elements. Computer Methods in Applied Mechanics and Engineering 2018 ;Volum 335. s. 152-193en_GB
dc.description.abstractIsogeometric analysis (IGA) has proven to be an improvement on the classical finite element method (FEM) in several fields, including structural mechanics and fluid dynamics. In this paper, the performance of IGA coupled with the infinite element method (IEM) for some acoustic scattering problems is investigated. In particular, the simple problem of acoustic scattering by a rigid sphere, and the scattering of acoustic waves by an elastic spherical shell with fluid domains both inside and outside, representing a full acoustic-structure interaction (ASI) problem. Finally, a mock shell and a simplified submarine benchmark are investigated. The numerical examples include comparisons between IGA and the FEM. Our main finding is that the usage of IGA significantly increases the accuracy compared to the usage of FEM due to increased inter-element continuity of the spline basis functions.en_GB
dc.language.isoenen_GB
dc.subjectTermSet Emneord::Akustiske bølger
dc.subjectTermSet Emneord::Spredning
dc.titleIsogeometric Analysis of Acoustic Scattering using Infinite Elementsen_GB
dc.typeArticleen_GB
dc.date.updated2018-04-10T15:34:23Z
dc.identifier.cristinID1578676
dc.identifier.cristinID1578676
dc.identifier.doi10.1016/j.cma.2018.02.015
dc.source.issn0045-7825
dc.source.issn1879-2138
dc.type.documentJournal article
dc.relation.journalComputer Methods in Applied Mechanics and Engineering


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