Buckling design guideline for thin and thick cylindrical shells

摘要

Shear-bending buckling of the cylindrical part ofFast Reactor(FBR) main vessels under horizontal earthquakeloading is one of the major problems in structural design.Therefore, the evaluation method of buckling strength is developedbased on buckling tests and numerical calculations. The purpose ofthis paper is to describe the results of static and dynamic bucklingtests of cylindrical shells and presented methods for bucklingstrength evaluation and seismic safety assessment.Shear buckling strength and bending buckling strength areevaluated under the assumption that both buckling modes interactslightly with each other. Then seismic safety assessment isperformed, where effect of response reduction under dynamicloads is taken into account.