Potential roles for the Master Curve in regulatory application

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• 作者：Kirk ; Mark ; Mitchell ; Matthew
• 关键词：Master Curve ; Nuclear Regulatory Commission ; Pressurized water reactors
• 刊名：The International Journal of Pressure Vessels and Piping
• 出版年：2001
• 出版时间：February, 2001
• 年：2001
• 卷：78
• 期：2-3
• 页码：111-123
• 全文大小：274 K

文摘

The Master Curve, as introduced by Wallin and co-workers in 1984, has evolved into a mature technology for characterizing the fracture toughness transition of ferritic steels. Considerable empirical evidence provides testament to the robustness of the Master Curve procedure. However, in 1997, the Nuclear Regulatory Commission (NRC) staff detailed several technical issues requiring resolution prior to staff acceptance of applications of Master Curve technology to the fracture integrity assessment of nuclear reactor pressure vessels (RPVs) . Current and recently completed research programs sponsored by both the NRC and Electric Power Research Institute (EPRI) focus on closure of these issues. This paper reviews the issues detailed in 1997, comments on their continued relevance in light of recent research results, and details areas where either additional research or a change or research focus is warranted.