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dc.contributor.advisorHodges, Dewey H.
dc.contributor.authorGupta, Mohit
dc.date.accessioned2019-05-22T13:01:50Z
dc.date.available2019-05-22T13:01:50Z
dc.date.created2019-05
dc.date.issued2019-04-01
dc.date.submittedMay 2019
dc.identifier.urihttp://hdl.handle.net/1853/61073
dc.description.abstractAs a complement to conventional FEA, state-of-the-art Variational Asymptotic Method (VAM) and a mixed formulation of Geometrically Exact Beam Theory (GEBT) are employed in this work, which is very fast, provides rigorous physics-based material models for composites while ensuring efficiency and accuracy. In the present work, some major issues with use of VAM-based framework for solving thin-walled structures have been identified and fixed, whose solution involved a theoretical modification in the existing VAM-based framework. Further, the overall framework has been facilitated with analysis of piezoelectric materials, analysis involving structural damping and a method to obtain, store and visualize time-histories of 3D stresses, strains and displacements. Finally, a method to use dimensional reduction techniques for solving beam-like structures, such as aircraft wings, involving complex and intricate 3-D geometries is demonstrated. Thus, the present work enhances the analysis of beams using asymptotic methods, expands the scope of VAM-based beam theory and provides extensive validation for implemented techniques with the commercially available 3-D FEM tools.
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherGeorgia Institute of Technology
dc.subjectVariation asymptotic method
dc.subjectVAM
dc.subjectGeometrically Exact Beam Theory
dc.subjectGEBT
dc.subjectComposite
dc.subjectNonlinear
dc.subjectTransient
dc.subjectDynamic
dc.subjectSmart
dc.subjectPiezoelectric
dc.subjectDamping
dc.subjectAperiodic
dc.subjectInhomogeneous
dc.titleEnhancements in analysis of beam-like structures using asymptotic methods
dc.typeDissertation
dc.description.degreePh.D.
dc.contributor.departmentAerospace Engineering
thesis.degree.levelDoctoral
dc.contributor.committeeMemberKardomateas, George A.
dc.contributor.committeeMemberRuzzene, Massimo
dc.contributor.committeeMemberRimoli, Julian J.
dc.contributor.committeeMemberWhite, Donald W.
dc.date.updated2019-05-22T13:01:50Z


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