Modelling Initial Geometric Imperfections of Steel Plane Frames using Entropy and Eigenmodes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU150511" target="_blank" >RIV/00216305:26110/23:PU150511 - isvavai.cz</a>

Výsledek na webu

<a href="https://npublications.com/journals/mechanics/2023/a202003-010(2023).pdf" target="_blank" >https://npublications.com/journals/mechanics/2023/a202003-010(2023).pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.46300/9104.2023.17.10" target="_blank" >10.46300/9104.2023.17.10</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modelling Initial Geometric Imperfections of Steel Plane Frames using Entropy and Eigenmodes

Popis výsledku v původním jazyce

The article introduces an innovative approach to modelling initial geometric imperfections in steel plane frames. Initial imperfections are introduced using the analysis of normalised deformations of elastic buckling modes. The scale of these modes is assessed by applying Shannon entropy and potential energy analysis. The presented case study demonstrates a decreasing scale of the elastic buckling modes. The entropy computed from the deformation reveals a new perspective on buckling modes and provides a more profound understanding of steel frame behaviour. The case study results indicate that anti-symmetric buckling modes exhibit higher entropy than symmetric buckling modes. This entropy-based analysis enables the differentiation between symmetric and anti-symmetric buckling modes, which is particularly valuable when the critical buckling loads of sway and non-sway buckling modes are closely aligned or overlap.

Název v anglickém jazyce

Modelling Initial Geometric Imperfections of Steel Plane Frames using Entropy and Eigenmodes

Popis výsledku anglicky

The article introduces an innovative approach to modelling initial geometric imperfections in steel plane frames. Initial imperfections are introduced using the analysis of normalised deformations of elastic buckling modes. The scale of these modes is assessed by applying Shannon entropy and potential energy analysis. The presented case study demonstrates a decreasing scale of the elastic buckling modes. The entropy computed from the deformation reveals a new perspective on buckling modes and provides a more profound understanding of steel frame behaviour. The case study results indicate that anti-symmetric buckling modes exhibit higher entropy than symmetric buckling modes. This entropy-based analysis enables the differentiation between symmetric and anti-symmetric buckling modes, which is particularly valuable when the critical buckling loads of sway and non-sway buckling modes are closely aligned or overlap.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA23-04712S" target="_blank" >GA23-04712S: Význam stochastických interakcí ve výpočtových modelech stavební mechaniky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Mechanics

ISSN

1998-4448

e-ISSN

—

Svazek periodika

17

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

64-73

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85172098716