Distortional buckling resistance of intermediate stiffeners in stainless steel cold-formed profiles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00351319" target="_blank" >RIV/68407700:21110/21:00351319 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.tws.2021.108390" target="_blank" >https://doi.org/10.1016/j.tws.2021.108390</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tws.2021.108390" target="_blank" >10.1016/j.tws.2021.108390</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Distortional buckling resistance of intermediate stiffeners in stainless steel cold-formed profiles

Popis výsledku v původním jazyce

The presented numerical study is focused on the resistance of compressed stainless steel cold-formed elements with an intermediate stiffener; this is typical of profiled sheeting flanges. The numerical model of a compressed stiffened element was validated on tests from literature. These adopted test results were substantially extended by a numerical parametric study to cover the whole slenderness range of stiffeners, their common geometries, as well as material diagrams typical of austenitic, duplex, and ferritic cold-formed stainless steels. Finally, the distortional buckling curve currently used in Eurocode 3 was found to be significantly unsafe. The design procedure was therefore modified – a lower distortional buckling curve was proposed. The proposed method was confirmed by the reliability study according to the Eurocode safety requirements. In addition, carbon steel models were also investigated with obtaining unsatisfactory results regarding the codified design procedure.

Název v anglickém jazyce

Distortional buckling resistance of intermediate stiffeners in stainless steel cold-formed profiles

Popis výsledku anglicky

The presented numerical study is focused on the resistance of compressed stainless steel cold-formed elements with an intermediate stiffener; this is typical of profiled sheeting flanges. The numerical model of a compressed stiffened element was validated on tests from literature. These adopted test results were substantially extended by a numerical parametric study to cover the whole slenderness range of stiffeners, their common geometries, as well as material diagrams typical of austenitic, duplex, and ferritic cold-formed stainless steels. Finally, the distortional buckling curve currently used in Eurocode 3 was found to be significantly unsafe. The design procedure was therefore modified – a lower distortional buckling curve was proposed. The proposed method was confirmed by the reliability study according to the Eurocode safety requirements. In addition, carbon steel models were also investigated with obtaining unsatisfactory results regarding the codified design procedure.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

<a href="/cs/project/GA20-24563S" target="_blank" >GA20-24563S: Metody globální analýzy pro štíhlé konstrukce z korozivzdorných ocelí a dalších ocelí s nelineárním pracovním diagramem</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Thin-Walled Structures

ISSN

0263-8231

e-ISSN

1879-3223

Svazek periodika

169

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

—

Kód UT WoS článku

000703666500005

EID výsledku v databázi Scopus

2-s2.0-85114681797