The evaluation of the integrity of the structural components in nuclear power plant is quite important to obtain the reliable results of risk assessment. In the present study, the database system for risk evaluation in material degradation has been proposed with the emphasis on the effective support for the information management. The proposed system also has the connection to the experimental test facility, where the combined effect of the existing conditions for degradation mechanism is examined. The proposed system has been utilized by the practical situations and has shown to be effective for the promotion of the mutual communication among researchers.
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