Please use this identifier to cite or link to this item: https://rda.sliit.lk/handle/123456789/2276
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dc.contributor.authorSapsathiarn, Y-
dc.contributor.authorRajapakse, R. K. N. D-
dc.date.accessioned2022-05-06T05:43:21Z-
dc.date.available2022-05-06T05:43:21Z-
dc.date.issued2018-11-01-
dc.identifier.urihttp://rda.sliit.lk/handle/123456789/2276-
dc.description.abstractIn this paper, a mechanistic model for nanobeams with surface energy effects is developed by using a variational formulation. Thiswork is motivated by the unusual response of nanocantilevers predicted by models based on the Young-Laplace equation for surface stress.The governing equation and boundary conditions derived from the variational methods are compared with the governing equations andboundary conditions used in the Young-Laplace models and other formulations. A key difference in the shear force boundary condition isnoted. Analytical solutions for simply supported, cantilevered, and fixed-fixed beams are reexamined. It is shown that the unusual behavior ofnanocantilevers predicted by the Young-Laplace models is due to the shear force boundary condition used. The current formulation leads toconsistent solutions for beams under different boundary conditions.DOI:10.1061/(ASCE)EM.1943-7889.0001520.© 2018 AmericanSociety of Civil Engineersen_US
dc.language.isoenen_US
dc.publisherAmerican Society of Civil Engineersen_US
dc.relation.ispartofseriesJournal of Engineering Mechanics;Vol 144 Issue 11 Pages 04018098-
dc.subjectNanobeamen_US
dc.subjectCantileversen_US
dc.subjectDeflectionen_US
dc.subjectStiffnessen_US
dc.subjectSurface stressen_US
dc.subjectVariational methodsen_US
dc.titleMechanistic models for nanobeams with surface stress effectsen_US
dc.typeArticleen_US
Appears in Collections:Research Papers - SLIIT Staff Publications

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