Adequately Safe and Efficient Design of Orthogonally Stiffened Cylinders

Lennon, R. F (1997) Adequately Safe and Efficient Design of Orthogonally Stiffened Cylinders. MSc(R) thesis, University of Glasgow.

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Abstract

The buckling resistance of orthogonally stiffened cylinders is investigated by using a general purpose finite element program (ABAQUS). The effects of residual stresses arising from shell cold forming the cylinder and welding frame components are considered in the analysis of two stiffened cylinder models with similar material weights and different geometric parameters. A static axial load is applied to the models prior to a non-linear elasto-plastic limit point buckling step which produces large displacement compartment buckling. Residual stress simulation has a reducing effect of approximately 25% on buckling resistance. Cylindrical boundary conditions for Finite Element analysis are formulated that allow torsional displacement and buckling of a sector of a cylinder of half axial height, and of a circumferential arc angle that will divide into 360

Item Type: Thesis (MSc(R))
Qualification Level: Masters
Additional Information: Adviser: P K Das
Keywords: Ocean engineering
Date of Award: 1997
Depositing User: Enlighten Team
Unique ID: glathesis:1997-75377
Copyright: Copyright of this thesis is held by the author.
Date Deposited: 19 Nov 2019 20:21
Last Modified: 19 Nov 2019 20:21
URI: http://theses.gla.ac.uk/id/eprint/75377

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