Strain Limit in Structural Steel Joint Analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00388004" target="_blank" >RIV/68407700:21110/25:00388004 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/cepa.70176" target="_blank" >https://doi.org/10.1002/cepa.70176</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cepa.70176" target="_blank" >10.1002/cepa.70176</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Strain Limit in Structural Steel Joint Analysis

Popis výsledku v původním jazyce

Inelastic numerical analysis is a classic method in engineering practice. Failure criteria are primarily expressed in terms of plastic strain limits. Several factors influence the plastic strain limit, including material properties, element geometry, numerical element type, mesh density, and constitutive relations. Component-Based Finite Element Method (CBFEM) is a widely used technique for the design of steel connections. It combines the analytical component method with the numerical finite element method (FEM). FEM is used to determine the distribution of internal forces, and plates are modeled using 4-node shell elements. Connection components are replaced by dependent nonlinear springs and analysis models derived from their specific behavior. This paper presents the results of determining the plastic strain limit for CBFEM numerical calculations. The limit is presented as a reduced value of the ultimate strain. The partial safety factor was determined for nine geometries of weakened plates based on design values obtained from Monte Carlo simulation and reliability analysis. The Monte Carlo simulation was performed using a combination of FEM analysis and analytical formulas implemented in Python. The plastic strain limit was found to be 4.77% over all mesh densities.

Název v anglickém jazyce

Strain Limit in Structural Steel Joint Analysis

Popis výsledku anglicky

Inelastic numerical analysis is a classic method in engineering practice. Failure criteria are primarily expressed in terms of plastic strain limits. Several factors influence the plastic strain limit, including material properties, element geometry, numerical element type, mesh density, and constitutive relations. Component-Based Finite Element Method (CBFEM) is a widely used technique for the design of steel connections. It combines the analytical component method with the numerical finite element method (FEM). FEM is used to determine the distribution of internal forces, and plates are modeled using 4-node shell elements. Connection components are replaced by dependent nonlinear springs and analysis models derived from their specific behavior. This paper presents the results of determining the plastic strain limit for CBFEM numerical calculations. The limit is presented as a reduced value of the ultimate strain. The partial safety factor was determined for nine geometries of weakened plates based on design values obtained from Monte Carlo simulation and reliability analysis. The Monte Carlo simulation was performed using a combination of FEM analysis and analytical formulas implemented in Python. The plastic strain limit was found to be 4.77% over all mesh densities.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/LUAUS23114" target="_blank" >LUAUS23114: Mezní poměrné přetvoření pro pokročilé modelování ocelových konstrukci – deterministické a pravděpodobnostní řešení</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

SDSS 2025 International Colloquium on Stability and Ductility of Steel Structures

ISBN

—

ISSN

2509-7075

e-ISSN

2509-7075

Počet stran výsledku

7

Strana od-do

829-835

Název nakladatele

Ernst & Sohn

Místo vydání

Berlin

Místo konání akce

Barcelona

Datum konání akce

8. 9. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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