Article (Scientific journals)
The Buckling and Post-Buckling of Steel C-Columns in Elevated Temperature
Czechowski, Leszek; Kedziora, Slawomir; Kolakowsk, Zbigniew
2019In Materials, 13 (74), p. 1-12
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Keywords :
finite element method; koiter; post-buckling state analysis; s theory; thermal buckling; thin-walled structures
Abstract :
[en] This work deals with the investigation of a steel thin-walled C-column subjected to compression due to temperature increase. These experimental studies of the compressed columns in post-buckling state were conducted to determine their load-carrying capacity. To ensure appropriate supports and keeping of columns, plates with grooves were constructed. The tests of the columns' compression for different preloads were carried out. By comparing the experiment results, numerical calculations based on the finite element method (FEM) and the semi-analytical method (SAM) of solution were performed. The computations were executed with the use of full material characteristics with consideration of large strains and deflections. Furthermore, while observing the deformation of columns, a non-contact Digital Correlation ARAMIS\textregistered system was employed whose calculated results of deformations are very close to the results of the numerical method. The paper revealed that maximum recorded loads under temperature rise are comparable regardless of a value of initial load. A good correlation in results between used methods was achieved. The main goal of the present work was to assess of behavior of thin-walled compressed steel columns in a temperature-controlled environment till their full damage
Research center :
Department of Strength of Materials, Lodz University of Technology
Disciplines :
Mechanical engineering
Author, co-author :
Czechowski, Leszek
Kedziora, Slawomir  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Kolakowsk, Zbigniew
External co-authors :
yes
Language :
English
Title :
The Buckling and Post-Buckling of Steel C-Columns in Elevated Temperature
Publication date :
19 December 2019
Journal title :
Materials
ISSN :
1996-1944
Publisher :
MDPI AG
Volume :
13
Issue :
74
Pages :
1-12
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Sustainable Development
Funders :
National Science Centre of Poland (UMO-2017/25/B/ST8/01046)
Available on ORBilu :
since 10 March 2020

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