Semi-analytical solution for post-buckling analysis of simply-supported multi-stepped columns. (October 2020)

• Record Type: Journal Article
• Authors: Ghavanloo, Esmaeal
• Is Part Of: Structures. Volume 27(2020)
• Page Start: 1086
• Page End: 1092
• Publication Date: 2020-10
• Subjects: Post-buckling -- Multi-stepped column -- Semi-analytical solution; Structural engineering -- Periodicals; 624.1
• DOI: 10.1016/j.istruc.2020.07.013
• Languages: English
• ISSNs: 2352-0124

Abstract

Abstract: In this paper, semi-analytical solution is developed to predict post-buckling configurations of simply-supported columns consisting of an arbitrary number of segments. Geometric and equilibrium relations of the deformed column are utilized to derive the nonlinear governing equations and the closed-form solution is obtained. Unknown parameters in the proposed solution are determined by using a numerical method. The column is assumed to be an inextensible and the Euler-Bernoulli beam hypotheses are used. The proposed solution is validated by comparing the results obtained with available data in the literature. Furthermore, by using the proposed solution, the post-buckling behaviour of various columns with geometry or material discontinuities is investigated.