Research and development of fast breeder reactor, 8

This paper summarizes the progress and the major achievements of R and D on structures and materials pertaining to the development of 'JOYO', 'MONJU' and future FBR plants. At the stage of 'JOYO', the design guide was established based on available relevant design criteria with findings typically about sodium technology incorporated. At the stage of 'Monju', R and D for covering wider areas and developing more sophisticated methodology was attempted to meet the further requirements for the design of a prototype FBR. Various types of material tests were conducted to develop the 'Material Strength Standard'. A general purpose nonlinear structural analysis system was developed, and structural component tests were carried out to verify associated design evaluation methods. The elevated temperature structural design criteria were established based on these activities. Further efforts are being made aiming at the extention and advancement of accumulated technology and the application of new materials and structures. (author)