Generalized beam theory-based advanced beam finite elements for linear buckling analyses of perforated thin-walled members

•Beam finite element-based buckling analysis of perforated thin-walled members.•Displacement mode-based beam model allowing for the cross-section discontinuity.•Enhanced approximation of element displacement field by using level-set functions.•Decomposition of any coupled buckled shape to a set of p...

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Veröffentlicht in:	Computers & structures 2022-01, Vol.259, p.106683, Article 106683
Hauptverfasser:	Duan, Liping, Zhao, Jincheng, Zou, Jiexin
Format:	Artikel
Sprache:	eng
Schlagworte:	Buckling Eigenvalue buckling problem Eigenvalues Extended finite elements Finite element method Generalized beam theory Mathematical analysis Perforated thin-walled bars
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