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Article: Effective modulus of polycrystalline aggregates in different geometrical configurations

TitleEffective modulus of polycrystalline aggregates in different geometrical configurations
Authors
KeywordsEffective modulus
Finite element analysis
Polycrystalline material
Statistics
Thin film
Issue Date2010
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/msea
Citation
Materials Science And Engineering A, 2010, v. 527 n. 18-19, p. 5008-5017 How to Cite?
AbstractIn the present study, a finite element scheme with random distribution strategy is employed to systematically investigate the modulus difference of polycrystalline copper aggregates in different geometrical configurations (three-dimensional bulk and thin film configurations). Firstly, the finite element simulation is performed to estimate the effective elastic constants in three-dimensional bulk configuration. The numerical estimations are in good agreement with the existing analytical solutions and experimental measurements. Secondly, the proven finite element scheme is extended to the prediction of the effective moduli of the free-standing and substrate-attached thin films. For the free-standing thin film, the effective Young's modulus decreases with reducing the film thickness. For the substrate-attached thin film, its effective modulus is affected by the relative stiffness between the substrate and the film. The spread of the effective moduli in different configurations could be as large as 20%. © 2010 Elsevier B.V.
Persistent Identifierhttp://hdl.handle.net/10722/137343
ISSN
2015 Impact Factor: 2.647
2015 SCImago Journal Rankings: 1.803
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFan, Hen_HK
dc.contributor.authorXie, XMen_HK
dc.contributor.authorSze, KYen_HK
dc.date.accessioned2011-08-26T14:23:30Z-
dc.date.available2011-08-26T14:23:30Z-
dc.date.issued2010en_HK
dc.identifier.citationMaterials Science And Engineering A, 2010, v. 527 n. 18-19, p. 5008-5017en_HK
dc.identifier.issn0921-5093en_HK
dc.identifier.urihttp://hdl.handle.net/10722/137343-
dc.description.abstractIn the present study, a finite element scheme with random distribution strategy is employed to systematically investigate the modulus difference of polycrystalline copper aggregates in different geometrical configurations (three-dimensional bulk and thin film configurations). Firstly, the finite element simulation is performed to estimate the effective elastic constants in three-dimensional bulk configuration. The numerical estimations are in good agreement with the existing analytical solutions and experimental measurements. Secondly, the proven finite element scheme is extended to the prediction of the effective moduli of the free-standing and substrate-attached thin films. For the free-standing thin film, the effective Young's modulus decreases with reducing the film thickness. For the substrate-attached thin film, its effective modulus is affected by the relative stiffness between the substrate and the film. The spread of the effective moduli in different configurations could be as large as 20%. © 2010 Elsevier B.V.en_HK
dc.languageengen_US
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/mseaen_HK
dc.relation.ispartofMaterials Science and Engineering Aen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing, 2010, v. 527 n. 18-19, p. 5008–5017. DOI: 10.1016/j.msea.2010.04.054-
dc.subjectEffective modulusen_HK
dc.subjectFinite element analysisen_HK
dc.subjectPolycrystalline materialen_HK
dc.subjectStatisticsen_HK
dc.subjectThin filmen_HK
dc.titleEffective modulus of polycrystalline aggregates in different geometrical configurationsen_HK
dc.typeArticleen_HK
dc.identifier.emailSze, KY:szeky@graduate.hku.hken_HK
dc.identifier.authoritySze, KY=rp00171en_HK
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.msea.2010.04.054en_HK
dc.identifier.scopuseid_2-s2.0-77954816355en_HK
dc.identifier.hkuros191227en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77954816355&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume527en_HK
dc.identifier.issue18-19en_HK
dc.identifier.spage5008en_HK
dc.identifier.epage5017en_HK
dc.identifier.isiWOS:000279300900069-
dc.publisher.placeSwitzerlanden_HK
dc.identifier.scopusauthoridFan, H=7402553644en_HK
dc.identifier.scopusauthoridXie, XM=36785943700en_HK
dc.identifier.scopusauthoridSze, KY=7006735060en_HK
dc.identifier.citeulike7087131-

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