Original title: Analysis of local defects of high-pressure pipelines
Authors: Micka, Michal ; Jíra, Josef
Document type: Papers
Conference/Event: Design, inspection, maintenance and operation of cylindrical steel tanks and pipelines., Praha (CZ), 2003-10-08 / 2003-10-11
Year: 2003
Language: eng
Abstract: In their surroundings the local defects of pipelines influence stress and strain state in the pipe wall. They are significant concentrators of the stress and they have fundamental effect on load-carrying capacity and service life of the pipe. The field of the stress and strain in the surroundings of defects may be detected experimentally or it may be used numerical modelling by FEM. In this paper are presented results of the numerical modelling of the stress state in the pipe wall due to ovality of the pipe also in the surroundings of corrosion pits and further at the place of local inward denting (buckling) of the pipe wall.
Keywords: local defects; pipelines; potrubí
Project no.: CEZ:AV0Z2071913 (CEP)
Host item entry: Design, inspection, maintenance and operation of cylindrical steel tanks and pipelines, ISBN 80-239-0405-1

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0106060

Permalink: http://www.nusl.cz/ntk/nusl-30499


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
Conference materials > Papers