Creep Buckling of Imperfect Columns.
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WISCONSIN UNIV MADISON MATHEMATICS RESEARCH CENTER
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In this paper, a study of the creep buckling of two simple columns with geometrical imperfections associated with finite deformations has been made. The material property of the column is considered to satisfy a power law for creep deformation and a generalized Ramberg-Osgood relation for noncreep deformation. It is found that creep buckling at a finite time would exist only when the magnitude of the load is between two bounds.