Simulation of geometrical imperfections and reliability estimation of cylindrical shell structures
Translated title
Simulering af geometriske imperfektioner og pålidelighedsestimering af cylindriske skalkonstruktioner
Authors
Boserup, Martin Winther ; Krog, Christian Lebech
Term
4. term
Education
Publication year
2014
Submitted on
2014-06-10
Pages
80
Abstract
This thesis deals with buckling of axially compressed thin cylindrical steel shells. Through state-of-the-art review, it is shown that a slightly imperfect cylinder has a load-carrying capacity (critical buckling resistance), that is significantly reduced compared to a perfect cylinder. Therefore, three different imperfection patterns is analysed through the most complex of the recommended procedures in the Eurocode, namely the geometrically and materially non-linear analysis with imperfection. Furthermore, the reliability of the imperfect models, as well as semi-empirical mathematical models from the Eurocode and DNV is estimated along with a calibration of partial coefficients.
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