[2L08-12] Structural Materials for Nuclear Fusion Reactors 1

[2L12] Probabilistic failure assessment of an irradiated DEMO breeding blanket component

*Hiroyasu TANIGAWA Tanigawa¹, Xiaoyong Ruan^2,1, Takashi Nozawa¹, Yutai Katoh³ (1. QST, 2. Univ. of Fukui, 3. ORNL)

Keywords:Probabilistic failure assessment, Breeding blanket, RAFM steel, F82H, Irradiation effects, Electromagnetic force

A case study of the Japanese DEMO breeding blanket is the basis for the discussion of the techni- cal issues involved in the probabilistic approach. The breeding blanket design was simplified, the failure probability was estimated, and the impact of electromagnetic force on ferromagnetic material caused by a strong magnetic field induced by toroidal field coils was considered. The discussion of the impact of the irradiation damage is based on the irradiation data for F82H reduced-activation ferritic/martensitic steel. A direction for the development of fusion structural materials is suggested in terms of design technology and the statistical quality of the irradiation database.