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Influence of initial imperfections on the collapse behaviour of box-columns

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Influen_initial_Gradzki_VIII_SympStat_1997.pdf (178.3Kb)
Date
1997
Author
Grądzki, Ryszard
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Abstract
In this work the analysis of the post-buckling state in the elasto-plastic range of a box-colunm subjected to uniform compression in the elasto-plastic range is preseoted. The problem is investigated using Rayleigh-Ritz variational method. The stress-strains relations in the plastic range are determined on the basis of the flow theory of plasticity. The proposed method is a combination of analytical and numerical solutions. Different materiał stress-strain curves and initial imperfections such: out-of-flatness and residual stresses are taken into account. The load-shortening curves for column of different geometrical parameters and material properties are shown in diagrams.
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http://hdl.handle.net/11652/3149
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  • Artykuły (WM) [320]

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