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Author(s):	Niederegger, P.; Knobloch, M.; Fontana, M.
Title:	Analytical calculation model for unstiffened elements with nonlinear stress-strain relationships under uniform compression
Abstract:	This paper presents an improved analytical calculation model for unstiffened elements with nonlinear stress-strain relationships (e.g. aluminium and stainless steel) subjected to uniform in-plane compression. The model takes material nonlinearity into account by means of the Ramberg-Osgood constitutive law. It is based on the results of a numerical parametric study of the load-carrying behaviour of unstiffened elements. A comparative study shows good agreement between test results and analytically determined strengths according to the new calculation model.
Source:	Steel Construction 2 (2009), No. 1
Page/s:	42-49
Language of Publication:	English

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