Convergence properties of materially and geometrically non-linear finite-element spatial beam analysis

Povzetek

The way the non-linear constitutive equations in the spatial beam formulations are solved, influences the rate of convergence and the computational cost. Three different approaches are studied: (i) the direct global approach, where the constitutive equations are taken to be the iterative part of the global governing equations, (ii) the local (or indirect global) approach, where the constitutive equations are solved separately in each step of the global iteration, and (iii) the partly reduced approach, which is the combination of (i) and (ii). The approaches are compared with regard to the number of global iterations and the total number of floating point operations. The direct global approach is found to be the best choice. (C) 2008 Elsevier B. V. All rights reserved.

Ključne besede

gradbeništvo;nelinearne teorije;gradbena dinamika;numerične analize;končni elementi;gradiva;non-linear beam theory;non-linear material;reiforced concrete;stress field integration;Newton's iteration;rate of convergence;

Podatki

Jezik:	Angleški jezik
Leto izida:	2008
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik:	Elsevier
UDK:	624.01:519.6
COBISS:	4413793
ISSN:	0168-874X
Št. ogledov:	2086
Št. prenosov:	847
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarne ključne besede:	gradbeništvo;nelinearne teorije;gradbena dinamika;numerične analize;končni elementi;gradiva;
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Delo ni kategorizirano
Strani:	Str. 60-69
Letnik:	ǂLetn. ǂ45
Zvezek:	ǂŠt. ǂ1
Čas izdaje:	2008
DOI:	10.1016/j.finel.2008.07.013
ID:	8312340