Health evaluation system for nuclear power plants

摘要

The present invention is characterized in that the soundness evaluation accuracy is improved and an appropriate maintenance measure can be provided on the basis of the evaluation result. A nuclear-power-plant soundness evaluation system(10) including a stress-distribution calculating unit (11) that outputs a stress distribution and an identified crack generating part; a crack-growth prediction unit (12) that predicts how the crack will grow from the crack generating part; and a soundness maintenance unit (13) that has a maintenance database (15) in which crack-growth prediction results and maintenance measures are associated and reads out from the maintenance database (15) a maintenance measure corresponding to the crack-growth prediction result and presents the read-out maintenance information to a user.