The Fracture Toughness of Nuclear Graphite Grades, Revision 1

Technical Report · Fri Jul 01 00:00:00 EDT 2022

DOI:https://doi.org/10.2172/1875340· OSTI ID:1875340

Burchell, Timothy  ^[1]; Erdman III, Donald  ^[1]; Lowden, Rick R. ^[1]; Hunter, James A. ^[1]; Hannel, Cara C. ^[1]; Campbell, Anne  ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

New measurements of graphite mode I critical stress intensity factor, K_Ic (commonly referred to as the fracture toughness) and the mode II critical shear stress intensity, K_IIc, are reported and compared with prior data for K_Ic and K_IIc. The new data are for graphite grades PCEA, IG-110 and 2114. Variations of K_Ic and acoustic emission (AE) data with graphite texture are reported and discussed. The Codes and Standards applications of fracture toughness, K_Ic, data are also discussed. A specified minimum value for nuclear graphite K_Ic is recommended.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE), Reactor Fleet and Advanced Reactor Development
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1875340
• Report Number(s): ORNL/TM-2016/678 Rev.1; ORNL/TM-2016/678 Rev.1; TRN: US2308632
• Country of Publication: United States
• Language: English

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