A master thesis from Aalborg University
Simulation of geometrical imperfections and reliability estimation of cylindrical shell structures
[Simulering af geometriske imperfektioner og pålidelighedsestimering af cylindriske skalkonstruktioner]
Author(s)
Term
4. term
Education
Publication year
2014
Submitted on
2014-06-10
Pages
80 pages
Abstract
This thesis deals with buckling of ax- ially compressed thin cylindrical steel shells. Through state-of-the-art review, it is shown that a slightly imperfect cylin- der has a load-carrying capacity (critical buckling resistance), that is significantly reduced compared to a perfect cylinder. Therefore, three different imperfection pat- terns is analysed through the most complex of the recommended procedures in the Eu- rocode, namely the geometrically and ma- terially non-linear analysis with imperfec- tion. Furthermore, the reliability of the im- perfect models, as well as semi-empirical mathematical models from the Eurocode and DNV is estimated along with a cali- bration of partial coefficients.
Documents
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