Structural analysis of an MHD superconducting magnet

The assumptions, methods, and results of a detailed stress and deformation analysis of a large MHD superconducting circular saddle coil magnet are described. The magnet consists of a bore tube, layers of windings and filler and prestressed circumferential banding. The section at peak field is analyzed as a plane strain problem and the coil-end load effects are considered separately. Effects of each stage of loading, namely, fabrication, cool-down and energizing are determined and superposed appropriately. The elimination of the costly ring girders is shown to be acceptable. The necessity for refined forms of analysis is discussed.