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    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 WGIAGE Nuclear safety Nuclear safety research CSNI PRG CSNI Safety Safety research …
    Published date: 27 September 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...

    WGIAGE Nuclear safety CSNI Safety Technology Safety research …
    Published date: 6 October 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
    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
    NEA Document
    Final Report on the Phase 1 of the Assessment of Structures Subjected to Concrete Pathologies (ASCET)
    NEA/CSNI/R(2016)13

    Taking into account life extension, concrete degradation becomes one of the main issues for long-term operation (LTO). Concrete pathologies/degradation mechanisms – alkali-aggregate reaction (AAR), d...

    English WGIAGE Nuclear safety research CSNI
    Published date: 4 July 2017
    NEA Document
    Final Report on the Phase 1 of the Assessment of Structures Subjected to Concrete Pathologies (ASCET): Appendices 3 and 4
    NEA/CSNI/R(2016)13/ADD1

    Taking into account life extension of nuclear power plants (NPPs) there is a need to investigate degradation mechanisms of existing structures defining their aging management program. The Alkali Aggr...

    English WGIAGE Nuclear safety research CSNI
    Published date: 1 July 2017
    NEA Document
    Phase II of the Assessment of Structures Subjected to Concrete Pathologies (ASCET): Final Report
    NEA/CSNI/R(2018)4

    The objective of the CSNI ASCET activity is to make general recommendations for ageing management of concrete nuclear facilities taking into account the effect of concrete pathologies on structural d...

    English WGIAGE Nuclear safety research CSNI
    Published date: 21 January 2019
    NEA Document
    Phase II of the Assessment of Structures Subjected to Concrete Pathologies (ASCET): Final Report (Appendix)
    NEA/CSNI/R(2018)4/ADD1

    Increasingly engineers are confronted with the need to perform predictive structural assessment based on limited or incomplete data set. This may include damage up to failure assessment (in the conte...

    English WGIAGE Nuclear safety research CSNI
    Published date: 1 January 2019
    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
    Current Practices in Defining Seismic Input for Nuclear Facilities
    NEA/CSNI/R(2015)9

    This report has been written in the framework of seismic subgroup of the NEA CSNI Working Group on Integrity and Ageing of Components and Structures (WGIAGE) to provide a brief review of current prac...

    English WGIAGE Nuclear safety research CSNI
    Published date: 29 May 2015
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