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Post-buckling analysis using a load-displacement control
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 Title & Authors
Post-buckling analysis using a load-displacement control
Gwon, Yeong-Du; Im, Beom-Su; Park, Cheol; Choe, Jin-Min;
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A new load/displacement parameter method is developed for the cases that loads are applied to one or more points, and displacements of a structure are controlled at one or more points sinultaneously. The procedure exploits a generalized Riks method, which utilizes load/displacement parameters as scaling factors in order to analyze the post-buckling phenomena including snap-through or snap-back. A convergence characteristic is improved by employing new relaxation factors in incremental displacement parameter, particularly at the region where exhibits severe numerical instability. The improved performance is illustrated by means of numerical example.
Post-bucking Phenomena;Snap-Back Phenomena;Incremental Load Parameter;Incremental Displacement Parameter;Relaxation Factor;Relaxation Method;
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