In this work, nonlinear buckling analysis of thin-walled beams by two different models is investigated: first one, developed by MUL2 group, based on Carrera Unified Formulation, and THINWALL v.16 beam model based on classical Euler-Bernoulli-Vlasov beam theory. In former, the refined beam theories are obtained on the basis of Taylor and Lagrange-type expansions. Latter is performed in framework of updated Lagrangian formulation adopting nonlinear displacement field of thin-walled cross-section. Isotropic and FG beams are referred to. It is observed that numerical results obtained by these methods match very well.
Comparison of classical and refined beam models applied on isotropic and FG thin-walled beams in nonlinear buckling response / Kvaternik, S; Filippi, M; Lanc, D; Turkalj, G; Carrera, E. - In: COMPOSITE STRUCTURES. - ISSN 0263-8223. - 229:(2019), p. 111490. [10.1016/j.compstruct.2019.111490]
Comparison of classical and refined beam models applied on isotropic and FG thin-walled beams in nonlinear buckling response
Filippi, M;Carrera, E
2019
Abstract
In this work, nonlinear buckling analysis of thin-walled beams by two different models is investigated: first one, developed by MUL2 group, based on Carrera Unified Formulation, and THINWALL v.16 beam model based on classical Euler-Bernoulli-Vlasov beam theory. In former, the refined beam theories are obtained on the basis of Taylor and Lagrange-type expansions. Latter is performed in framework of updated Lagrangian formulation adopting nonlinear displacement field of thin-walled cross-section. Isotropic and FG beams are referred to. It is observed that numerical results obtained by these methods match very well.File | Dimensione | Formato | |
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https://hdl.handle.net/11583/2971915