An isogeometric Timoshenko curved beam element with an enhanced representation of concentrated loads

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00358559" target="_blank" >RIV/68407700:21110/22:00358559 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.compstruc.2022.106815" target="_blank" >https://doi.org/10.1016/j.compstruc.2022.106815</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compstruc.2022.106815" target="_blank" >10.1016/j.compstruc.2022.106815</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An isogeometric Timoshenko curved beam element with an enhanced representation of concentrated loads

Popis výsledku v původním jazyce

Isogeometric analysis directly employs CAD geometry representation. This approach is very convenient for the analysis of curved beams, since the arbitrarily-curved beams can be analysed with no geometry approximation errors (as far as the CAD model is concerned). CAD models typically use NURBS basis functions, which also introduce higher continuity along an entire computational domain. Although this continuity can be beneficial for analysis in many aspects, it also causes oscillations in numerical solutions when concentrated load is applied inside a domain. This paper extends approach introduced for straight beams based on basis extension to the generally curved Timoshenko beams using adaptive basis enrichment. Extension functions are proposed and the superior performance over standard IGA is documented.

Název v anglickém jazyce

An isogeometric Timoshenko curved beam element with an enhanced representation of concentrated loads

Popis výsledku anglicky

Isogeometric analysis directly employs CAD geometry representation. This approach is very convenient for the analysis of curved beams, since the arbitrarily-curved beams can be analysed with no geometry approximation errors (as far as the CAD model is concerned). CAD models typically use NURBS basis functions, which also introduce higher continuity along an entire computational domain. Although this continuity can be beneficial for analysis in many aspects, it also causes oscillations in numerical solutions when concentrated load is applied inside a domain. This paper extends approach introduced for straight beams based on basis extension to the generally curved Timoshenko beams using adaptive basis enrichment. Extension functions are proposed and the superior performance over standard IGA is documented.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Computers and Structures

ISSN

0045-7949

e-ISSN

1879-2243

Svazek periodika

270

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

—

Kód UT WoS článku

000814760900007

EID výsledku v databázi Scopus

2-s2.0-85131792379