Buckling of short cylinders with elliptical head and core support structure under transverse shearing loads

Following the technical assessment study of a pool-type LMFBR in Japan located in an earthquake prone zone, a demonstration test and research program is being made by Central Research Institute of Electric Power Industry (CRIEPI) in cooperation with others. Buckling tests and analyses were performed to clarify the basic buckling characteristics for short cylinders and core support structures and direct to establish the rational design method. Some related tests with plastic shear buckling were made. These tests were made using cylinders with heavy flanges on both ends. In this paper, buckling tests were carried out using four models with heads on one end of the cylinders and two commonly used cylinders. The end effects on the buckling load and post buckling behavior were clarified and the prediction of the buckling load were examined