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HAFFAR, M. HORÁČEK, M. ÁDÁNY, S.
Originální název
Analytical GNI Analysis for Lateral-torsional Behavior of Thin-walled Beams with Doubly-symmetric I-Sections
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
In this paper elastic lateral-torsional behavior of simple beams is discussed. The motivation of the presented research is the observation that classic analytical prediction and finite element prediction are, typically, considerably different, when the second-order nonlinear behavior of beams with initial imperfections is analyzed. In order to understand and explain the observed differences, a novel analytical solution is presented for the geometrically nonlinear analysis of beams with initial geometric imperfection. The presented analytical solution is derived for doubly-symmetric cross-sections, but with the novelty that it takes into consideration the changing geometry as the load is increasing. The most important steps of the derivations are summarized, and the resulted formulae are briefly discussed. Numerical studies are performed, too: the results of the new analytical formulae are compared to those from shell finite element analysis. The results suggest that the new formulae are able to capture the most important elements of the behavior. By the analytical and numerical results, it is proved that classic analytical solutions for the geometrically nonlinear analysis of beams with geometric imperfections are necessarily different from the numerical results obtained by incremental-iterative procedures.
Klíčová slova
lateral-torsional buckling; geometrically nonlinear analysis; geometric imperfections
Autoři
HAFFAR, M.; HORÁČEK, M.; ÁDÁNY, S.
Vydáno
11. 1. 2023
Nakladatel
BUDAPEST UNIV TECHNOLOGY ECONOMICS
Místo
BUDAPEST
ISSN
0553-6626
Periodikum
Periodica Polytechnica - Civil Engineering
Ročník
67
Číslo
1
Stát
Maďarsko
Strany od
211
Strany do
223
Strany počet
13
URL
https://pp.bme.hu/ci/article/view/21028
Plný text v Digitální knihovně
http://hdl.handle.net/11012/209216
BibTex
@article{BUT180775, author="Muhammad Ziad {Haffar} and Martin {Horáček} and Sándor {Ádány}", title="Analytical GNI Analysis for Lateral-torsional Behavior of Thin-walled Beams with Doubly-symmetric I-Sections", journal="Periodica Polytechnica - Civil Engineering", year="2023", volume="67", number="1", pages="211--223", doi="10.3311/PPci.21028", issn="0553-6626", url="https://pp.bme.hu/ci/article/view/21028" }