Abstract
Cylindrical shells subjected to lateral loads buckle in shear or bending modes. The bending buckling mode is a diamond-shaped pattern or an elephant-foot bulge at the edge. The effects of geometrical imperfections and combined loading on buckling loads and postbuckling behavior are investigated by developing a special-purpose finite element analysis (FEA) program using the 8-node isoparametric shell element. Four types of imperfections are considered and the relationships between the imperfection amplitude and the buckling load are obtained. Three types of loading are taken into consideration. For short cylindrical shells, shear buckling is dominant but elephant-foot bulges appear with an increase in bending moments and axial loads. Effects of axial loads on shear buckling and elephant-foot bulges are calculated. Postbuckling behavior which is closely related to imperfection sensitivity is also investigated
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Schedule a callMore From: JSME international journal. Ser. A, Mechanics and material engineering
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