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NEA Document
OECD/NEA X-FEM Benchmark Final Report
NEA/CSNI/R(2020)11

This report summarises the work done for the activity: “Benchmark analysis on the eXtended Finite Element Method (X-FEM) calculation technology in its use to evaluate the fracture mechanics stress in...

WGIAGE Nuclear safety CSNI Safety Technology Safety research …
Published date: 6 October 2022
NEA Document
NEA CODAP Project Topical Report: A Review of the "Post-1998" Experience with Thermal Fatigue in Heavy Water and Light Water Reactor Piping Components
NEA/CSNI/R(2019)13

Since its inception in 2002, the operating experience with thermal fatigue mechanisms has been an intrinsic aspect of the technical scope of CODAP, which is a joint database project within the Commit...

Nuclear safety Light water reactors Information, data and knowledge management CSNI PRG Databases CSNI Joint project Safety Technology Safety research …
Published date: 11 October 2022
NEA Document
Reactivity Initiated Accident Benchmark Phase III Report
NEA/CSNI/R(2020)10

Following the recommendations from the technical workshop on “Nuclear Fuel Behaviour during Reactivity-Initiated Accidents” organised by the Nuclear Energy Agency (NEA) in September 2009, a first ben...

Fuel studies Nuclear safety Nuclear technology Nuclear security Nuclear safety research CSNI PRG CSNI Safety Uncertainty analysis Nuclear safety regulation WGFS …
Published date: 18 October 2022
NEA Document
ICDE Topical Report: Provision Against Common-cause Failures by Improving Testing
NEA/CSNI/R(2019)5

This report presents a study performed on a set of common-cause failure (CCF) events within the Nuclear Energy Agency (NEA) International Common-cause Failure Data Exchange (ICDE) Project. The topic ...

Nuclear safety CSNI PRG CSNI Joint project Safety Safety research …
Published date: 3 November 2022
NEA Document
ICDE Topical Report: Collection and Analysis of Multi-Unit Common-Cause Failure Events
NEA/CSNI/R(2019)6

This report presents a study performed on a set of common-cause failure (CCF) events within the International Common-cause Failure Data Exchange (ICDE) Project. The topic was multi-unit CCF events.

T...

Nuclear safety CSNI PRG CSNI Joint project Safety Safety research …
Published date: 3 November 2022
NEA Document
Phase III of the Assessment of Structures Subjected to Concrete Pathologies (ASCET): Final Report
NEA/CSNI/R(2019)11

In the ASCET Phase III, the goal was to assess and develop the Phase II (blind benchmark) recommendations using additional test results. The Phase III simulations were performed using a full set of t...

English Structural materials WGIAGE Nuclear safety Nuclear safety research CSNI PRG Safety assessment CSNI Safety …
Published date: 24 November 2022
NEA Document
Advancing the Robustness of Electrical Power Systems of Nuclear Power Plants
NEA/CSNI/R(2020)8

The aim of this report is to examine whether there are any international variations in the electrical power system designs (“design variations”) of nuclear power plants that affect the system respons...

Nuclear safety WGELEC Nuclear safety research CSNI PRG CSNI Safety Nuclear safety regulation …
Published date: 13 January 2023
NEA Document
Behaviour of Iodine Project 3: Final Summary Report
NEA/CSNI/R(2020)14

The present report summarises the main results and learnings from the third phase of the NEA Behaviour of Iodine Project (BIP-3), which was conducted between 2016 and 2019 by the Canadian Nuclear Lab...

Nuclear safety State-of-the-art report Nuclear safety research CSNI PRG CSNI Joint project Safety Safety research Nuclear safety regulation …
Published date: 15 February 2023
NEA Document
Evaluation of Design and Monitoring Requirements for Vibrations in Safety-Related Fluid Systems
NEA/CSNI/R(2020)2

In order to reach a better understanding of countries’ different approaches to the evaluation of vibrations detected in piping systems and components, the NEA Committee on the Safety of Nuclear Insta...

WGIAGE Nuclear safety Nuclear safety research CSNI PRG CSNI Safety …
Published date: 15 February 2023
Joint project
International Common-cause Failure Data Exchange (ICDE) Project

Scheme showing the technical scope of NEA ICDE project activities, NEA 

Common-cause failure (CCF) events can significantly affect the availability of safety systems of nuclear power plants. In recog...

Risk assessment Nuclear safety research CSNI Probabilistic risk assessment
Published date: 30 November 2022