Frequency response analysis of perforated shells with uncertain materials and damage

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorHakula, Harri
dc.contributor.authorLaaksonen, Mikael
dc.contributor.departmentDepartment of Mathematics and Systems Analysis
dc.contributor.departmentLUT University
dc.date.accessioned2020-04-28T07:13:59Z
dc.date.available2020-04-28T07:13:59Z
dc.date.issued2019-12-01
dc.description.abstractIn this paper, we give an overview of the issues one must consider when designing methods for vibration based health monitoring systems for perforated thin shells especially in relation to frequency response analysis. In particular, we allow either the material parameters or the structure or both to be random. The numerical experiments are computed using the standard high order finite element method with stochastic collocation for the cases with random material and Monte Carlo for those with damaged or random structures. The results display a wide range of responses over the experimental configurations. In perforated shell structures, the internal boundary layers can play an important role especially when damage is allowed within the penetration patterns. The computational methodology advocated here can be used to build statistical databases that are necessary for development of probabilistic damage identification methods.en
dc.description.versionPeer revieweden
dc.format.extent22
dc.format.extent1-22
dc.format.mimetypeapplication/pdf
dc.identifier.citationHakula , H & Laaksonen , M 2019 , ' Frequency response analysis of perforated shells with uncertain materials and damage ' , Applied Sciences (Switzerland) , vol. 9 , no. 24 , 5299 , pp. 1-22 . https://doi.org/10.3390/app9245299en
dc.identifier.doi10.3390/app9245299
dc.identifier.issn2076-3417
dc.identifier.otherPURE UUID: f2771ea7-c3fa-415b-b7e4-18157054a29d
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/f2771ea7-c3fa-415b-b7e4-18157054a29d
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85077381681&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/42186627/Hakula_Frequency.applsci_09_05299_1.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/43950
dc.identifier.urnURN:NBN:fi:aalto-202306053565
dc.language.isoenen
dc.publisherSpringer International Publishing AG
dc.relation.ispartofseriesApplied Sciences (Switzerland)en
dc.relation.ispartofseriesVolume 9, issue 24en
dc.rightsopenAccessen
dc.subject.keywordEigenproblem
dc.subject.keywordFrequency response
dc.subject.keywordHp-version
dc.subject.keywordPerforated shells
dc.subject.keywordUncertainty quantification
dc.titleFrequency response analysis of perforated shells with uncertain materials and damageen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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