Plastic buckling of initially imperfect stiffened cylinders in axial compression

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dc.contributor.advisorReddy, B Dayaen_ZA
dc.contributor.authorDuffett, Gino Alanen_ZA
dc.date.accessioned2014-12-10T07:54:52Z
dc.date.available2014-12-10T07:54:52Z
dc.date.issued1981en_ZA
dc.descriptionBibliography: leaves 117-118.en_ZA
dc.description.abstractBifurcation in the plastic range of axially compressed stringer-stiffened cylinders is investigated. The shell under consideration is assumed to have an initial imperfection in the form of a sinusoidal deviation both axially and circumferentially.The constitutive relation employed here is J 2 deformation theory of plasticity. This relation, as well as kinematic assumptions regarding the behaviour of the panels and stiffeners which constitute the stiffened shell is used in the principle of virtual work to obtain a set of non-linear algebraic equations whose solution provides complete information about the prebuckling equilibrium path. Bifurcation from the primary path is examined by making use of a functional whose first variation is zero when two solutions to the problem are possible. This leads to an eigenvalue problem, the eigenvalue being the critical compressive load and the eigenfunction being the corresponding buckling mode. Results are presented or shells of different geometries and material properties, a limited comparison of theoretical results as obtained by this analysis with available experimental data is also made.en_ZA
dc.identifier.apacitationDuffett, G. A. (1981). <i>Plastic buckling of initially imperfect stiffened cylinders in axial compression</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering. Retrieved from http://hdl.handle.net/11427/9921en_ZA
dc.identifier.chicagocitationDuffett, Gino Alan. <i>"Plastic buckling of initially imperfect stiffened cylinders in axial compression."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 1981. http://hdl.handle.net/11427/9921en_ZA
dc.identifier.citationDuffett, G. 1981. Plastic buckling of initially imperfect stiffened cylinders in axial compression. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Duffett, Gino Alan AB - Bifurcation in the plastic range of axially compressed stringer-stiffened cylinders is investigated. The shell under consideration is assumed to have an initial imperfection in the form of a sinusoidal deviation both axially and circumferentially.The constitutive relation employed here is J 2 deformation theory of plasticity. This relation, as well as kinematic assumptions regarding the behaviour of the panels and stiffeners which constitute the stiffened shell is used in the principle of virtual work to obtain a set of non-linear algebraic equations whose solution provides complete information about the prebuckling equilibrium path. Bifurcation from the primary path is examined by making use of a functional whose first variation is zero when two solutions to the problem are possible. This leads to an eigenvalue problem, the eigenvalue being the critical compressive load and the eigenfunction being the corresponding buckling mode. Results are presented or shells of different geometries and material properties, a limited comparison of theoretical results as obtained by this analysis with available experimental data is also made. DA - 1981 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1981 T1 - Plastic buckling of initially imperfect stiffened cylinders in axial compression TI - Plastic buckling of initially imperfect stiffened cylinders in axial compression UR - http://hdl.handle.net/11427/9921 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/9921
dc.identifier.vancouvercitationDuffett GA. Plastic buckling of initially imperfect stiffened cylinders in axial compression. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 1981 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9921en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Civil Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherCivil engineeringen_ZA
dc.titlePlastic buckling of initially imperfect stiffened cylinders in axial compressionen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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