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Thermo-mechanical design optimization of symmetric and non-symmetric sandwich plates with ceramic-metal-ceramic functionally graded core to minimize stress, deformation and mass

2021-11-15Journal article Restricted access
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dc.contributor.authorMoleiro, Filipa
dc.contributor.authorMadeira, Jose Firmino Aguilar
dc.contributor.authorCarrera, E.
dc.contributor.authorFerreira, A. J. M.
dc.date.accessioned2021-10-22T09:41:08Z
dc.date.available2021-10-22T09:41:08Z
dc.date.issued2021-11-15
dc.description.abstractThis work explores the multiobjective design optimization of symmetric and non-symmetric sandwich plates with ceramic-metal-ceramic functionally graded (FG) core, along with ceramic faces (if included), under thermo-mechanical loadings. The FG core is made of two functionally graded material (FGM) layers, each with the volume fractions of the constituent phases defined by a power-law function through-thickness, with the interface between them metal-rich and the core outer surfaces ceramic-rich. In line with symmetric or nonsymmetric sandwich plates, the design variables involve the thickness of each FGM layer of the core and the index of its power-law function, along with the thickness of each ceramic face. The thermal and mechanical problems are fully coupled using a layerwise mixed least-squares model with multi-field independent variables, including, most importantly, displacements, temperature and transverse stresses. The FG core z-continuous effective properties are also fully described by high-order z-expansions, as demonstrated adopting the rule of mixtures. The multiobjective optimization problem is solved by Direct MultiSearch derivative-free method, minimizing mass, transverse displacement and the stress field, measured by Tsai-Hill failure criteria, all together. Numerical results provide optimal symmetric and non-symmetric sandwich plates with ceramicmetal-ceramic FG core, considering distinct constituent materials and including three-dimensional approximate solutions for validation.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMOLEIRO, F.; [et al] – Thermo-mechanical design optimization of symmetric and non-symmetric sandwich plates with ceramic-metal-ceramic functionally graded core to minimize stress, deformation and mass. Composite Structures. ISSN 0263-8223. Vol. 276 (2021), pp. 1-21pt_PT
dc.identifier.doi10.1016/j.compstruct.2021.114496pt_PT
dc.identifier.eissn1879-1085
dc.identifier.issn0263-8223
dc.identifier.urihttp://hdl.handle.net/10400.21/13914
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationUIDB/50022/2020 - FCT via IDMEC, under the Associated Laboratory of Energy, Transports and Aeronautics (LAETA)pt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0263822321009582?via%3Dihubpt_PT
dc.subjectSandwich platespt_PT
dc.subjectFunctionally graded material layerpt_PT
dc.subjectThermo-mechanical loadingspt_PT
dc.subjectLayerwise mixed modelpt_PT
dc.subjectMultiobjective design optimizationpt_PT
dc.titleThermo-mechanical design optimization of symmetric and non-symmetric sandwich plates with ceramic-metal-ceramic functionally graded core to minimize stress, deformation and masspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage21pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleComposite Structurespt_PT
oaire.citation.volume276pt_PT
person.familyNameMoleiro
person.familyNameMadeira
person.givenNameFilipa
person.givenNameJose Firmino Aguilar
person.identifier.ciencia-idA215-A1A8-7B4C
person.identifier.ciencia-id6F1E-DCF0-D6EC
person.identifier.orcid0000-0001-9287-3519
person.identifier.orcid0000-0001-9523-3808
person.identifier.ridI-4843-2015
person.identifier.ridN-6918-2016
person.identifier.scopus-author-id35793082000
person.identifier.scopus-author-id7003405549
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationec6d3fd6-1ff9-4eec-8264-861e3289392f
relation.isAuthorOfPublicationd495619a-a6ab-4ff5-8e70-3a1351f934dc
relation.isAuthorOfPublication.latestForDiscoveryec6d3fd6-1ff9-4eec-8264-861e3289392f

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