A finite element analysis of adhesively bonded composite joints including geometric nonlinearity, nonlinear viscoelasticity, moisture diffusion and delayed failure

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dc.contributor.authorRoy, Samiten
dc.contributor.committeechairReddy, Junuthula N.en
dc.contributor.committeememberSmith, C.W.en
dc.contributor.committeememberHenneke, Edmund G.en
dc.contributor.committeememberJohnson, Eric R.en
dc.contributor.committeememberBrinson, Halbert F.en
dc.contributor.departmentEngineering Mechanicsen
dc.date.accessioned2019-03-26T19:52:59Zen
dc.date.available2019-03-26T19:52:59Zen
dc.date.issued1987en
dc.description.abstractA two-dimensional finite-element computational procedure is developed for the accurate analysis of the strains and stresses in adhesively bonded joints. The large displacements and rotations experienced by the adherends and the adhesive are taken into account by invoking the updated Lagrangian description of motion. The adhesive layer is modeled using Schapery's nonlinear single integral constitutive law for uniaxial and multiaxial states of stress. Effect of temperature and stress level on the viscoelastic response is taken into account by a nonlinear shift factor definition. Penetrant sorption is accounted for by a nonlinear Fickean diffusion model in which the diffusion coefficient is dependent on the penetrant concentration and the dilatational strain. A delayed failure criterion based on the Reiner-Weisenberg failure theory has also been implemented in the finite element code. The applicability of the proposed models is demonstrated by several numerical examples.en
dc.description.degreeDoctor of Philosophyen
dc.format.extentxi, 190 leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/88624en
dc.language.isoen_USen
dc.publisherVirginia Polytechnic Institute and State Universityen
dc.relation.isformatofOCLC# 18114657en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1987.R697en
dc.subject.lcshFinite element methoden
dc.subject.lcshComposite materialsen
dc.subject.lcshJoints (Engineering)en
dc.titleA finite element analysis of adhesively bonded composite joints including geometric nonlinearity, nonlinear viscoelasticity, moisture diffusion and delayed failureen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.nameDoctor of Philosophyen

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