[3B01-04] Work Support Technology

[3B03] Diagnosis of Social Infrastructures Based on Probabilistic Fracture Mechanical Analysis by Dr. Mainte, Integrated Simulator of Mainte nance Optimizatoin of LWRs (2)

*isobe yoshihiro¹, Mitsuyuki Sagisaka¹, Ryota Ogawa¹, Takashi Matsunaga¹, Hiroaki Fujiyoshi¹, Satoshi Matsumoto², Toru Kosaka², Shinobu Yoshimura³ (1. Nuclear Fuel Industiries ltd., 2. Atree, Inc., 3. The University of Tokyo)

Keywords:Dr. Mainte, Integrated Simulator of Mainte nance Optimizatoin of LWRs, Probabilistic Fracture Mechanic Analysis, Diagnosis of Social Infrastructures

Special attentions have been increasingly paid for the diagnosis of social infrastructures after the collapse of ceiling of Sasago tunnel of Chuo Expressway. It is reported that the main cause was due to the age-related degradation of chemical anchors. Chemical anchors are also frequently used in nuclear power stations. Here we have been continuously applying PFM (Probabilistic Fracture Mechanical) analysis in more detail after the previous report to the diagnosis of social infrastructures using Dr. Mainte, an integrated simulator to optimize maintenance activities of nuclear power plants based on PFM analysis.