Study of a methodology of identifying important research problems by the PIRT process

Takayuki Aoki, Toshiyuki Takagi, Ichiro Komura, Takashi Furukawa, Noritaka Yusa, Ryoichi Urayama

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In this paper, we propose a new methodology of identifying important research problems to be solved to improve the performance of some specific scientific technologies by the phenomena identification and ranking table (PIRT) process, which has been used as a methodology for demonstrating the validity of the best estimate simulation codes in USNRC licensing of nuclear power plants. It keeps the fundamental concepts of the original PIRT process but makes it possible to identify important factors affecting the performance of the technologies from the viewpoint of the figure of merit and problems associated with them, which need to be solved to improve the performance. Also in this paper, we demonstrate the effectiveness of the developed method by showing a specific example of the application to physical events or phenomena in objects having fatigue or SCC crack(s) under ultrasonic testing and eddy current testing.

Original languageEnglish
Pages (from-to)231-241
Number of pages11
JournalTransactions of the Atomic Energy Society of Japan
Volume12
Issue number3
DOIs
Publication statusPublished - 2013

Keywords

  • Accuracy
  • Crack detection
  • Crack sizing
  • Eddy current testing
  • Fatigue
  • Influential factor
  • Inspection
  • PIRT
  • SCC
  • Ultrasonic testing

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Safety, Risk, Reliability and Quality

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