Naslov
Finite element modelling of the behaviour of connections in the stability analysis of thin-walled beam-type structures

Autori
Turkalj, Goran ; Vizentin, Goran ; Lanc, Domagoj

Izvornik
Transactions of FAMENA (1333-1124) 31 (2007), 1; 25-36

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
structural stability; thin-walled beam-type structures; flexible connections; space beam element

Sažetak
This work presents a one-dimensional FE formulation for stability analysis of thin-walled beam-type structures, taking into account effects of connection flexibilities. The tangent matrix of a conventional 14-degree-of-freedom beam element is derived by applying the linearized virtual work principle and Vlasov’ s assumption. The material is homogeneous, isotropic and linear-elastic. Flexible connections are allowed to occur at finite element nodes by modifying elastic and geometric stiffness matrices of a conventional beam element. A special transformation matrix is derived for that purpose. Stability analysis is performed in an eigenvalue manner, neglecting pre-buckling deformations and assuming an ideal structural geometry and loading conditions.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja, Strojarstvo, Temeljne tehničke znanosti

POVEZANOST RADA