Naslov
A beam model for nonlinear stability analysis of beam-type structures with flexible connections

Autori
Turkalj, Goran ; Merdanović, Edin ; Lanc, Domagoj

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

Izvornik
Proceedings of ECCM 2010 (CD-ROM) / Allix, O. ; Wriggers, P. - Pariz : European Community on Computational Methods in Applied Sciences, 2010

Skup
IV European Conference on Computational Mechanics ECCM 2010, Solids, Structures and Coupled Problems in Engineering

Mjesto i datum
Pariz, Francuska, 16.05.2010. - 21.05.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
beam model ; structural stability ; flexible connections

Sažetak
This work presents a large-displacement beam model for the nonlinear stability analysis of beam-type structures, composed of the straight and prismatic beam members, with flexible connections. The equations of equilibrium are derived using the virtual work principle and the updated Lagrangian incremental (UL) description. Displacements are allowed to be large, but strains are assumed to stay small. External loads are static and conservative. Internal moments are represented as the stress resultants calculated by the Euler- Bernoulli-Navier theory for bending and the Timoshenko-Vlasov theory for torsion. The external stiffness approach (ESA) is used in the force recovering. With this approach, the external stiffness matrix of a beam element is included in the force recovering to exclude the rigid-body effects.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Temeljne tehničke znanosti

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