Abstract
We have developed an integrated simulator for the maintenance optimization of LWRs (Light Water Reactors) based on PFM (Probabilistic Fracture Mechanics). The aim of the simulator is to provide a method to optimize maintenance activities for representative components and piping systems in nuclear power plants totally and quantitatively in terms of safety, availability and economic efficiency (both from cost and profit). The simulator has a function of visualization of the calculated results by a divided multi-dimensional visualization method. The simulator will also provide a guideline regarding social acceptance of the risk-based decision makings. This study has been being conducted under "Innovative and Viable Nuclear Energy Technology (IVNET) Development Project" financially supported by Japanese METI (Ministry of Economy, Trade and Industry).
