Detail publikace

Analytical GNI Analysis for Lateral-torsional Behavior of Thin-walled Beams with Doubly-symmetric I-Sections

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"
}