한국압력기기공학회 논문집 (Transactions of the Korean Society of Pressure Vessels and Piping)

한국압력기기공학회 (Korean Society of Pressure Vessels and Piping)
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라운드로빈 평가 결과에 기반한 국내 기관의 용접잔류응력 해석 분포의 불확실성 평가

Uncertainty Quantification of Welding Residual Stress Analysis based on Domestic Organizations Round-Robin Evaluation

  • 투고 : 2023.11.15
  • 심사 : 2023.12.19
  • 발행 : 2023.12.30
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초록

This paper examines the quantification of uncertainty for welding residual stresses in dissimilar metal welds used in nuclear power plants. A mock-up of a dissimilar metal weld pipe, consisting of carbon and stainless steel pipes, was fabricated to measure the residual stress. A Round-Robin analysis was conducted by Korean institutions to assess the welding residual stress. The analysis was carried out in the second order, and the data obtained by each institution was evaluated based on the information provided. Using the Round-Robin results, the distribution of uncertainty in welding residual stresses among Korean institutions was evaluated. The quantification of uncertainty for Korean institutions was found to have a wider range compared to the distribution of welding residual stresses observed in overseas institutions. This study is considered useful in the establishment of comprehensive strategies for evaluating welding residual stress analysis methods used by domestic institutions.

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과제정보

본 연구는 2020년도 정부(산업통상자원부)의 재원으로 한국에너지기술평가원의 지원(No.20206500000010)과 대한민국 원자력안전위원회(NSSC)가 지원한 재원을 사용하여 한국원자력안전재단(KoFONS)을 통한 원자력안전연구사업의 지원을 받았습니다(No. 2204015).

참고문헌

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