Development of Nuclear Piping Integrity Expert System(I) - Evaluation Method RecomMendation and Material Properties Inference -

원자력배관 건전성평가 전문가시스템 개발(1) - 평가법 제시 및 재료물성치 추론 -

  • 김영진 (성균관대학교 기계설계학과) ;
  • 석창성 (성균관대학교 기계설계학과) ;
  • 최영환 (성균관대학교 대학원) ;
  • ;
  • Published : 1996.02.01


The objective of this paper is to develop an expert system for nuclear piping integrity. This paper describes the selection methodology of integrity evalution method and the inference of material properties. To select the integrity evaluation method, the weight factor for respective material properties was obtained by the sensitivity analysis of the effect of material properties on integrity evaluation method. Subsequently the possession ratio for respective integrity evaluation method was computed, and the most appropriate integrity evaluation method for given input information is selected. In the material properties inference, stress-strain curves and J-R curves were predicted from tensile properties such as yield strength and tensile strength.


Expert System;Sensitivity Analysis;Fracture Mechanics;J-Integral;Possession Ratio;Nuclear Piping


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