Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Buckling behaviour of thin-walled regular polygonal tubes subjected to bending or torsion
Abstract In a recent paper (Gonçalves and Camotim, 2013 [1]), the authors presented an investigation concerning the buckling (bifurcation) behaviour of uniformly compressed thin-walled tubes with regular polygonal cross-sections (RCPS). The present paper complements the previous work by addressing the local and distortional buckling behaviour of RCPS members subjected to bending or torsion and aims at providing a novel insight into these phenomena. In particular, the specialization of Generalized Beam Theory (GBT) for RCPS, as recently proposed in Gonçalves and Camotim (2013) [2], is employed to obtain closed-form analytical solutions and also to carry out parametric studies by means of numerical analyses which are both computationally efficient (due to the small number of d.o.f. involved) and clarifying (due to the modal decomposition features of GBT). For validation purposes, solutions taken from the literature and also standard shell finite element model results are employed.
Highlights Extension of previous work to members under bending and torsion is presented. Local, distortional, shear and multi-mode buckling is investigated. Numerical and analytical closed-form solutions are presented. Duplicate buckling modes are obtained in some cases.
Buckling behaviour of thin-walled regular polygonal tubes subjected to bending or torsion
Abstract In a recent paper (Gonçalves and Camotim, 2013 [1]), the authors presented an investigation concerning the buckling (bifurcation) behaviour of uniformly compressed thin-walled tubes with regular polygonal cross-sections (RCPS). The present paper complements the previous work by addressing the local and distortional buckling behaviour of RCPS members subjected to bending or torsion and aims at providing a novel insight into these phenomena. In particular, the specialization of Generalized Beam Theory (GBT) for RCPS, as recently proposed in Gonçalves and Camotim (2013) [2], is employed to obtain closed-form analytical solutions and also to carry out parametric studies by means of numerical analyses which are both computationally efficient (due to the small number of d.o.f. involved) and clarifying (due to the modal decomposition features of GBT). For validation purposes, solutions taken from the literature and also standard shell finite element model results are employed.
Highlights Extension of previous work to members under bending and torsion is presented. Local, distortional, shear and multi-mode buckling is investigated. Numerical and analytical closed-form solutions are presented. Duplicate buckling modes are obtained in some cases.
Buckling behaviour of thin-walled regular polygonal tubes subjected to bending or torsion
Gonçalves, Rodrigo (Autor:in) / Camotim, Dinar (Autor:in)
Thin-Walled Structures ; 73 ; 185-197
08.08.2013
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Buckling behaviour of thin-walled regular polygonal tubes subjected to bending or torsion
| Online Contents | 2013
Elastic buckling of uniformly compressed thin-walled regular polygonal tubes
| Online Contents | 2013