Computational performance of a DSG-based isogeometric beam element

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Computational performance of a DSG-based isogeometric beam element

Popis výsledku v původním jazyce

An application of Discrete shear gap (DSG) method to the isogeometric Timoshenko beam element with variable curvature is presented. A locking-removal capability of DSG is compared to the reduced integration. While the reduced integration does not remove stress or strain oscillations, DSG provides results matching exact solution. The application of DSG method results in full stiffness matrix of a patch and compared to reduced integration is computationally more demanding. This possibly leads to a deterioration of overall time efficiency of the isogeometric approach. Thus the computational performance of the element is compared to the standard straight beam element. Results proved the enormous time efficiency of isogeometric element over standard FEA and excellent convergence properties of DSG method.

Název v anglickém jazyce

Computational performance of a DSG-based isogeometric beam element

Popis výsledku anglicky

An application of Discrete shear gap (DSG) method to the isogeometric Timoshenko beam element with variable curvature is presented. A locking-removal capability of DSG is compared to the reduced integration. While the reduced integration does not remove stress or strain oscillations, DSG provides results matching exact solution. The application of DSG method results in full stiffness matrix of a patch and compared to reduced integration is computationally more demanding. This possibly leads to a deterioration of overall time efficiency of the isogeometric approach. Thus the computational performance of the element is compared to the standard straight beam element. Results proved the enormous time efficiency of isogeometric element over standard FEA and excellent convergence properties of DSG method.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Engineering Mechanics 2017 - Book of full texts

ISBN

978-80-214-5497-2

ISSN

1805-8248

e-ISSN

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Počet stran výsledku

4

Strana od-do

290-293

Název nakladatele

Brno University of Technology

Místo vydání

Brno

Místo konání akce

Svratka

Datum konání akce

15. 5. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000411657600062