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Design optimization of functionally graded plates under thermo-mechanical loadings to minimize stress, deformation and mass

2020-08-01Journal article Restricted access
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dc.contributor.authorMoleiro, Filipa
dc.contributor.authorMadeira, Jose Firmino Aguilar
dc.contributor.authorCarrera, Erasmo
dc.contributor.authorReddy, J. N.
dc.date.accessioned2020-06-29T11:33:28Z
dc.date.available2020-06-29T11:33:28Z
dc.date.issued2020-08-01
dc.description.abstractThis work addresses the multiobjective design optimization of metal-ceramic functionally graded (FG) plates, which are composed of a main functionally graded material (FGM) layer and may include metal and/or ceramic faces, under thermo-mechanical loadings. The design variables are the thickness of the FGM layer, the index of its power-law distribution of metal-ceramic volume fractions, and if included, the thickness of the metal and/or ceramic faces. The three objectives focus on mass, maximum transverse displacement and maximum value of the Tsai-Hill failure criteria to measure the stress field, aiming to minimize all together. Both thermal and mechanical problems are solved simultaneously using a layerwise mixed model based on least-squares formulation with multi-field independent variables, namely, displacements, temperature, transverse stresses, transverse heat flux, in-plane strains and in-plane components of the thermal gradient. The FGM layer z-continuous effective properties are fully described via high-order z-expansions, similarly to finite element approximations. The multiobjective optimization problem is solved by Direct MultiSearch (DMS) derivative-free method, which uses the notion of Pareto dominance to retain a list of feasible non-dominated solutions. Numerical results provide optimal designs of FG plates under thermo-mechanical loadings, exploring distinct metal-ceramic constituent materials and different side-to-thickness ratios, including three-dimensional approximate solutions for validation.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMOLEIRO, F.; [et al] – Design optimization of functionally graded plates under thermo-mechanical loadings to minimize stress, deformation and mass. Composite Structures. ISSN 0263-8223. Vol. 245 (2020), pp. 1-19pt_PT
dc.identifier.doi10.1016/j.compstruct.2020.112360pt_PT
dc.identifier.issn0263-8223
dc.identifier.urihttp://hdl.handle.net/10400.21/11959
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationUID/EMS/50022/2019 - FCT via IDMEC, under the Associated Laboratory of Energy, Transports and Aeronautics (LAETA)pt_PT
dc.relation.publisherversionhttps://pdf.sciencedirectassets.com/271517/1-s2.0-S0263822320X00109/1-s2.0-S0263822320309284/main.pdf?X-Amz-Date=20200629T112309Z&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Signature=bf88dffb70276c22728272784b2a4b46096f8f2ffb7dc73aef5a26b596891b44&X-Amz-Credential=ASIAQ3PHCVTYSWCBWZG6%2F20200629%2Fus-east-1%2Fs3%2Faws4_request&type=client&tid=prr-8f7e7881-c835-4b74-81b6-bbb1dcb92504&sid=97d8f6212e3806415a697488c19fe2fd1ddagxrqb&pii=S0263822320309284&X-Amz-SignedHeaders=host&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEHsaCXVzLWVhc3QtMSJHMEUCIDONsipV0uiIVKbbKvmY%2B0h%2Fj9ii9pjWSW8rGYN4bWZWAiEA7tkYkW3ai8Ei37XIJlj0xTbSqehnMVREvZbBe5nRkqoqtAMIExADGgwwNTkwMDM1NDY4NjUiDKQQDQGVZR3y8vXtziqRA03WI1gnJ1FRX%2B%2BY5N2drCuWH%2FnPT6THJwFtqarwaOfNtUourQZ18Raao1DgMPdUaRNoLKXXJ0lhNRdRZFmJALnl90bCewwVLU4kWQE1nlxRKr2VEe31rHpywyi%2FeFcIqyUU7ZObauQ59VxZLUYDF9QhIQd96guzEk9z1SkvIYOgVWjxRfuYMd9p%2BM9H305JB8MDB2F2BCQm8WAyIInNv8gGxF9T8bL67fEP8DLa%2BJ05YD37qkaJH5gTTrvWuA%2BRb0XkBCd8chqTrDbU24LkmcXWC3heY6BAHH7kADqj1t5o6P0N5rQBQ50IwzOb70qOrY6P382bARpN8sRQyaQzDcEUdgCfZpCyxpz0m8vyba4GdKL%2BNhiwieHA8zIQ%2BRue30Kc7jAwogdCHVLoi%2F1at3n8G4KyMQi6oDflC6%2FPUMagD2VCEftQayEmQne5kwwRqEj938OSNQF7YstKflvT5MQN534a5Oby4uI2V7rv25gkIelipO%2BoVmoGakPM5fc624GvHx%2FlTGVuOo03bSUVe38JMM395vcFOusBCJTxQ7qLLTYtcgzaHB7bZuxphgq3OANeaUDEj4ck2P%2BJz5IyQI%2FC9vhPRKZo52PVfVGOZd9uphyFkT1YW8%2Bu%2B6vXSZa3MhrM8iorXqYnHlHkselr37sdh6TyotsOTW%2BB5vv9TouApbFHxsPfoDER%2BPOI6x1uitBi6QZJWmmyQds2hCjCD8Vp4SrMBxVMykVycpQXBNGyi5IygqKOkFvYZKRf2bLGEWqZGdA3LQ8cjBovqf9BaE15qNhAuXNhxBgSFLkHIMPysfYnFpIMT0ffqp21Cyoe9%2Ftkd717hzMC3U0zonSrbR4nj8r%2B5g%3D%3D&host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&X-Amz-Expires=300&hash=702ee150125bc65d9a101252c2a0f8e8e33b74100db6d839c250c4ada89aef68pt_PT
dc.subjectMultilayered platespt_PT
dc.subjectFunctionally graded material layerpt_PT
dc.subjectThermo-mechanical loadingspt_PT
dc.subjectLayerwise mixed modelpt_PT
dc.subjectMultiobjective design optimizationpt_PT
dc.titleDesign optimization of functionally graded plates under thermo-mechanical loadings to minimize stress, deformation and masspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage19pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleComposite Structurespt_PT
oaire.citation.volume245pt_PT
person.familyNameMoleiro
person.familyNameMadeira
person.familyNameCarrera
person.familyNameReddy
person.givenNameFilipa
person.givenNameJose Firmino Aguilar
person.givenNameErasmo
person.givenNameJ. N.
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person.identifier.ridD-9859-2011
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person.identifier.scopus-author-id35793082000
person.identifier.scopus-author-id7003405549
person.identifier.scopus-author-id7006373871
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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