The magnitude of stress concentration of I-beam with web opening because of lateral-torsional buckling effects
ISSN: 1708-5284
Article publication date: 11 January 2023
Issue publication date: 23 February 2024
Abstract
Purpose
It is generally known that the perforated section such as the castellated section is good to sustain distributed loads but inadequate to sustain highly concentrated loads. Therefore, it is possible to design the opening in a different arrangement of web opening to achieve section efficiency, thus improving the strength and torsional behaviour of the section with web opening. This study aims to focus on the finite element analysis of I-beam with and without openings in steel section dominated to lateral-torsional buckling behaviour.
Design/methodology/approach
In this work, the analysis of different sizes, shapes and arrangements of web opening is performed by using LUSAS application to conduct numerical analysis on lateral-torsional buckling behaviour. This involves three diameter sizes of web opening, five types of opening shapes and two criteria of the model.
Findings
The section with c-hexagon web opening was placed about 200-mm centre to centre and 100-mm edge distance, contribute to 7.26% increase of buckling capacity. For the section with 150-mm centre to centre and 50-mm edge distance, the occurrence of local buckling contributes to decrease of lateral buckling section capacity to 19.943 kNm, where pure lateral-torsional buckling mostly occurred because of prevented section. Besides that, the web opening diameter was also analysed. The web crippling was observed because of the increase of opening diameter from 0.67 to 0.80 D.
Originality/value
This contributes to a decrease in buckling capacity as figured in the contour of the deformed shape. For Model 1, an increase of buckling capacity (31.46%) is observed when the opening diameter are changed from 0.67 to 0.80 D.
Keywords
Acknowledgements
The author wishes to convey heartfelt gratitude and highest appreciation to Universiti Sains Malaysia for the financial support of the Fundamental Research Grant Scheme under Grant [number 203/PAWAM/6071239].
Citation
Hashim, N.S. and De’nan, F. (2024), "The magnitude of stress concentration of I-beam with web opening because of lateral-torsional buckling effects", World Journal of Engineering, Vol. 21 No. 2, pp. 386-397. https://doi.org/10.1108/WJE-06-2022-0234
Publisher
:Emerald Publishing Limited
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