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Objectivity of strain measures in the fixed-pole approach


Gaćeša, Maja; Jelenić, Gordan
Objectivity of strain measures in the fixed-pole approach // 3rd Polish Congress of Mechanics and 21st International Conference on Computer Methods in Mechanics Short Papers / Kleiber, MichaŁ ; Burczyński, Tadeusz ; Wilde, Krzysztof ; Górski, JarosŁaw ; Winkelmann, Karol ; Smakosz, Łukasz (ur.).
Gdańsk: Polish Society of Theoretical and Applied Mechanics, 2015. str. 675-676 (predavanje, međunarodna recenzija, sažetak, znanstveni)


Naslov
Objectivity of strain measures in the fixed-pole approach

Autori
Gaćeša, Maja ; Jelenić, Gordan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
3rd Polish Congress of Mechanics and 21st International Conference on Computer Methods in Mechanics Short Papers / Kleiber, MichaŁ ; Burczyński, Tadeusz ; Wilde, Krzysztof ; Górski, JarosŁaw ; Winkelmann, Karol ; Smakosz, Łukasz - Gdańsk : Polish Society of Theoretical and Applied Mechanics, 2015, 675-676

ISBN
978-83-932107-4-9

Skup
3rd Polish Congress of Mechanics and 21st International Conference on Computer Methods in Mechanics

Mjesto i datum
Gdanjsk, 08-11.09.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Strain-invariance; geometrically exact beam theory; 3D beam theory; fixed-pole approach

Sažetak
The paper presents a novel geometrically exact spatial beam finite element derived from the so-called fixed-pole approach. While utilising the standard Galerkin discretisation, these elements turn out to have non-standard degrees of freedom which are a combination of translations and rotations. If these unknowns are interpolated using Lagrange polynomials the discretised strain measures turn out to be strain non-invariant. In this work a remedy to this problem is presented.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne tehničke znanosti



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2013-11-1631 - Aproksimacija ovisna o konfiguraciji u nelinearnoj analizi konstrukcija metodom konačnih elemenata (Gordan Jelenić, )

Ustanove
Građevinski fakultet, Rijeka