DEVELOPMENT OF EXPERT-SYSTEM FOR NUCLEAR PIPING INTEGRITY

The objective of this paper is to develop a nuclear piping integrity e xpert system (NPIES) for nuclear piping integrity. This paper describe s the structure and the development strategy of the NPIES system. The NPIES system consists of five parts; user interface, database, knowled ge base, expert and integrity evaluation parts. The user interface par t is developed to connect the user and the NPIES system effectively. I n the database part, nuclear piping material properties are stored; th e unknown material properties are stored in the knowledge base part. V arious rules for inferring material properties an stored in the knowle dge base part. The most appropriate evaluation method for a given inpu t condition is recommended in the expert part. Finally, the integrity evaluation part is developed for the evaluation of piping integrity ef fectively. (C) 1997 Elsevier Science S.A.