Document: NRC Regulatory Guide
Document ID: aa450282-f5b0-4dd2-b41a-917a7491deb2
Document Type: regulatory_guide
Title: Preparing Probabilistic Fracture Mechanics (Rev. 0)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2133/ML21334A158.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.245
CFR Part: 
CFR Title: 

Content:
r performing PFM analyses and preparing the associated documentation in support of regulatory applications. To enhance the efficiency of the NRC’s review of PFM submittals, the staff recommends that applicants using the framework presented in this guidance document identify any deviations in their application and provide explanations for each deviation. Regulatory Position C.1 1. General Considerations 1.1. Graded Approach For regulatory submittals to the NRC that use PFM as part of their supporting technical basis, the level of detail associated with the analysis and documentation activities should scale with the complexity and safety significance of the application, as well as the complexity of the supporting analysis (including methods and analysis tools). This RG provides a graded set of guidelines on analysis steps, analytical software quality assurance (SQA) and verification and validation (V&V), and levels of associated documentation. When followed, these guidelines result in an acceptable practical framework for the content of PFM submittals to ensure the effectiveness and efficiency of NRC reviews of submittals containing PFM analysis and results. 1.2. Analytical Steps in a Probabilistic Fracture Mechanics Analysis Applicants should follow the process charted in Figure C-1 when performing PFM analyses in support of regulatory applications. NUREG/CR-7278 describes the steps shown in detail, and Table C-1 shows the cross-referencing between the sections of this RG and the corresponding sections of NUREG/CR-7278. RG 1.245 Revision 0, Page 9 Figure C-1: PFM analysis flowchart in support of regulatory submittals (corresponding sections of this guide are shown in parentheses when applicable) RG 1.245 Revision 0, Page 10 Table C-1: Submittal Content Mapping to NUREG/CR-7278 RG Section NUREG/CR-7278 Sections Content 2.1 3.1.1 Regulatory Context 2.2 Information Made Available to NRC Staff 2.2.1 3.1.3 PFM Software 2.2.2 3.1.3 Supporting Documents 2.3 2.2.1 / 3.1.2