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Local buckling of a bent flange of a thin walled beam
Author(s) -
Stasiewicz P.,
Magnucki K.,
Lewiński J.,
Kasprzak J.
Publication year - 2004
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200410258
Subject(s) - flange , bent molecular geometry , buckling , beam (structure) , structural engineering , finite element method , critical load , t beam , numerical analysis , simple (philosophy) , materials science , engineering , mathematics , mathematical analysis , philosophy , epistemology
The paper is devoted to stability of repeatedly bent flange of a thin‐walled beam. In classical approach each segment of the flange is considered as a simple plate. The paper provides an analytical description of the whole flange as a thin‐walled structure with the use of an energetic method. An explicit formula defining the critical load of the flange was obtained. This enables to perform a numerical analysis of a family of thin‐walled beams. Additionally, a numerical analysis with FEM was carried out. The results of both approaches have been compared. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)