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    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...

    Nuclear safety Nuclear safety research CSNI PRG CSNI Safety CNRA WGIAGE …
    Published date: 15 February 2023
    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 Nuclear safety Nuclear safety research CSNI PRG Safety assessment CSNI Safety Structural materials CNRA WGIAGE …
    Published date: 24 November 2022
    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...

    CNRA WGIAGE Nuclear safety CSNI Safety Technology Safety research …
    Published date: 6 October 2022
    NEA Document
    Prestressed Concrete Reactor Containment Behaviour in Test Condition Taking into Account Ageing Effects (VeRCoRs)
    NEA/CSNI/R(2019)15

    The VeRCoRs facility mock-up is a reactor containment building at 1/3 scale. The mock-up is instrumented so that its behaviour is monitored from the beginning of construction. More than 700 sensors a...

    English Nuclear safety Nuclear safety research CSNI PRG CSNI Safety Safety research CNRA WGIAGE …
    Published date: 27 September 2022
    Activity
    Working Group on Integrity and Ageing of Components and Structures (WGIAGE)

    The main mission of the Working Group on Integrity and Ageing of Components and Structures (WGIAGE) is to advance the current understanding of the relevant aspects related with ensuring the integrity...

    Structural materials WGIAGE Nuclear safety research Safety Safety of components and structures …
    Published date: 10 August 2022
    NEA Document
    Proceedings of the CSNI Workshop on Structural Reliability Evaluation and Mechanical Probabilistic Approaches of NPP Components
    NEA/CSNI/R(2007)18

    The Committee on the Safety of Nuclear Installations (CSNI) Workshop on Structural Reliability Evaluation and Mechanical Probabilistic Approaches of NPP Components was held in Lyon, France on 25-27 S...

    English WGIAGE Nuclear safety research CSNI Benchmark Proceedings Probabilistic risk assessment …
    Published date: 20 December 2021
    NEA Document
    Assessment of the Safe Shutdown Earthquake Robustness Against On-site Observations
    NEA/CSNI/R(2019)14

    This activity of the Nuclear Energy Agency (NEA) Committee on the Safety of Nuclear Installations (CSNI) Working Group on Integrity and Ageing of Components and Structures (WGIAGE) is entitled “Asses...

    Nuclear installations Sustainable development WGIAGE Nuclear safety CSNI Safety Safety research …
    Published date: 25 November 2021
    Publications and Reports
    CSNI Technical Opinion Paper - No. 18

    Seismic probabilistic safety assessment (SPSA) is a systematic method for examining and evaluating the risk from earthquake-initiated accidents. The significant advances in the area of SPSA since the...

    English WGRISK WGIAGE WGEV Safety Nuclear safety regulation Probabilistic risk assessment Technical Opinion Papers …
    Published date: 27 September 2021
    Event
    NEA Kappa Workshop: Earthquake Ground Motions on Rock Sites
    25 - 28 May 2021
    Videoconference, Zoom

    In the aftermath of the Fukushima accident, the nuclear community has been re-evaluating seismic hazard at nuclear facilities worldwide. One of the major challenges in this effort is quantifying and ...

    WGIAGE Nuclear safety External hazards Nuclear safety research CSNI Safety research …
    Published date: 1 December 2021
    NEA Document
    Nuclear Power Plant Components and Structures under Severe Accident Loading (COSSAL): Final Report (Appendices)
    NEA/CSNI/R(2019)2/ADD1

    This is a companion document to the final report of the COSSAL project. It includes appendices which address participant responses to a questionnaire, the data of the problem statement on the large-s...

    English WGIAGE Nuclear safety research CSNI
    Published date: 16 August 2019
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