Materials Reliability Program: Implementation Strategy for Master Curve Reference Temperature, To (MRP-101).

Technical Information Center Oak Ridge Tennessee

关键词: Fracture toughness;    Master curve;    Frameworks;    Safety assessments;    Implementation;   

RP-ID  :  DE2005835118

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The report provides a framework for a basis to significantly reduce the degree of conservatism in RPV safety assessments according to NRC Regulation 10CFR50.61 and 10CFR50, Appendix G. Procedures and rationale are proposed to address regulatory concerns with the application of the Master-Curve based fracture toughness characterization methodologies. This report address the continued development of strategies for using direct characterization of fracture toughness of a reactor pressure vessel (RPV) for integrity assessments. The development of a fracture toughness-based integrity assessment framework will allow for a more realistic assessment of vessel integrity that provides greater operating flexibility while maintaining appropriate safety margins.