Optimal design of thin-walled columns for buckling under loadings controlled by displacements |
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Authors: | Jacek Krużelecki Adam Stawiarski |
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Affiliation: | 1. Institute of Applied Mechanics, Cracow University of Technology, Jana Paw?a II 37, 31-864, Kraków, Poland
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Abstract: | In this paper the problem of the optimal design of thin-walled tubular columns under loadings controlled by displacement is
investigated. A radius of cross-sectional circular profile varying along the axis of the shell-column as well as a wall thickness,
which lead to the maximal axial displacement caused by compression before the structure buckles are sought. Both global (buckling
of a column) and local (wall buckling of a shell) stability of a structure are taken into account. The geometry of the structure
is approximated by the convex Bézier polynomial. The results are obtained using numerical optimization method, namely the
simulated annealing method. |
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Keywords: | |
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