ML24172A302

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Extremely Low Probability of Rupture (Xlpr) Code, NRC Perspectives and Activities
ML24172A302
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Issue date: 06/25/2024
From: Matthew Homiack
Office of Nuclear Regulatory Research
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Download: ML24172A302 (1)


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Extremel y Low Probability of Rupture (xLPR) Code

NRC Perspectives and Activities

Matthew Homiack

Materials Engineer U.S. Nuclear Regulatory Commission Office of Nuclear Regulatory Research Division of Engineering Reactor Engineering Branch

Matthew.Homiack@nrc.gov

+1 (301) 415- 2427 Maintenance and Development

Version 2.3 Complete Computational Framework Public Release Forthcoming Enhancements

Increase flexibility, performance, Includes New Optimized capacity, and maintainability Crack Initiation Module

Software Development Version 2.4 Underway Process Improvements

New Stainless Steel GitHub for Continuous Integration Crack Growth Rate Model Doorstop for Requirements Management 2

NRC Code Applications

Stress Corrosion Cracking of Stainless Steel

> Emergent issue support in response to French operating experience

> Initiating event frequency input to probabilistic risk assessment

> Impending publication of xLPR analyses: TLR-RES/DE/REB-2024- 08

International Benchmarking of Probabilistic Fracture Mechanics Codes for Piping Applications

> Organized under the Organisation for Economic Co-operation and Development, Nuclear Energy Agency, Committee on the Safety of Nuclear Installations (CSNI)

> 14 codes benchmarked, including xLPR

> CSNI has approved publication of final report: NEA/CSNI/R(2024)1

Chloride Induced Stress Corrosion Cracking of Spent Fuel Storage Canisters

> Supporting new work with the Office of Nuclear Material Safety and Safeguards 3 Summar y

The xLPR code is continuing to evolve as a high technology platform for nuclear systems and component integrity assessment.

xlpr@nrc.gov or xlpr@epri.com for further information

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