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Layerwise mixed least-squares finite element models for free vibration analysis of multilayered piezoelectric composite plates

2015Journal article Restricted access
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dc.contributor.authorMesquita, Teresa
dc.contributor.authorMoleiro, Filipa
dc.contributor.authorAraujo, A. L.
dc.contributor.authorSoares, C. M.Mota
dc.contributor.authorSoares, C. A. Mota
dc.date.accessioned2024-10-22T15:39:01Z
dc.date.available2024-10-22T15:39:01Z
dc.date.issued2015
dc.description.abstractThis work provides an assessment of a finite element model based on layerwise mixed formulation using least squares applied to plate sandwich structures with skins made of piezoelectric layers and the core with composite angle play laminate layers. The extension to free vibration analysis is developed. The model assumes a layerwise variable description of displacements, transverse stresses and in-plane strains, taken as independent variables. The layerwise mixed formulation enables the fulfilment of the so-called C0z, yielding, for free vibration analysis a symmetric quadratic eigenvalue problem. The present model has nine degrees of freedom(dof ) per node in the core and in the upper and lower piezoelectric skins thirteen (nine to mechanical and four electrical) per node. The numerical examples show that the model predictive capabilities are in excellent agreement with three-dimensional exact solutions and also with available alternative models, from very thick to very thin sandwich piezoelectric plates.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.26/52611
dc.language.isoengpt_PT
dc.subjectLayerwise mixed formulationpt_PT
dc.subjectLeast squares modelpt_PT
dc.subjectSandwich structurespt_PT
dc.subjectPiezoelectric composite platespt_PT
dc.subjectQuadratic eigenvalue problemspt_PT
dc.titleLayerwise mixed least-squares finite element models for free vibration analysis of multilayered piezoelectric composite platespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceLisboa, Portugalpt_PT
oaire.citation.startPagePaper ID-238pt_PT
oaire.citation.title10th International Conference on Composite Science and Technology ICCST/10pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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