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Steel conical shells have long been used in various parts of different structures. Sensitivity to the initial geometrical imperfection has been one of the most significant issues on the stability of these structures, which has made them highly vulnerable to the buckling. Most attention has been devoted to structures under normal fabrication related imperfections. Notwithstanding, the challenges of large local imperfections – presented herein as dent-shaped imperfections – have not been a focus yet for these structures. This study aims to provide experimental data on the effect of such imperfections on the buckling capacity of these shells under axial compression. The results show changes in the buckling mode and the capacity for such damaged thin specimens as is outlined in this paper, with an average overall capacity reduction of 11%.

Item Type:	Refereed Article
Keywords:	conical steel shells, buckling, axial loading, dent, local imperfection
Research Division:	Engineering
Research Group:	Civil Engineering
Research Field:	Structural Engineering
Objective Division:	Construction
Objective Group:	Construction Materials Performance and Processes
Objective Field:	Metals (e.g. Composites, Coatings, Bonding)
Author:	Ghanbari Ghazijahani, T (Mr Tohid Ghanbari Ghazijahani)
Author:	Jiao, H (Dr Hui Jiao)
Author:	Holloway, D (Dr Damien Holloway)
ID Code:	105464
Year Published:	2015
Web of Science® Times Cited:	1
Deposited By:	Engineering
Deposited On:	2016-01-05
Last Modified:	2017-11-06
Downloads:	1 View Download Statistics