National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

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

DE2005835118

Publication Date	2005
Page Count	108
Abstract	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.
Keywords	Fracture toughness Master curve Frameworks Safety assessments Implementation Models Model uncertainty Regulations Procedures Strategies Integrity Nuclear reactor pressure vessel Nuclear Regulatory Commission Degree of conservatism
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Electric Power Research Inst., Palo Alto, CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200524

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

Materials Reliability Program: Implementation Strategy for Master Curve Reference Temperature, To (MRP-101).
DE2005835118

Publication Date	2005
Page Count	108
Abstract	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.
Keywords	Fracture toughness Master curve Frameworks Safety assessments Implementation Models Model uncertainty Regulations Procedures Strategies Integrity Nuclear reactor pressure vessel Nuclear Regulatory Commission Degree of conservatism
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Electric Power Research Inst., Palo Alto, CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200524