Working Group on Integrity and Ageing of Components and Structures (WGIAGE)

    Mandate

    The main mission of the Working Group on Integrity and Ageing of Components and Structures (WGIAGE) is to advance the current understanding of those aspects relevant to ensuring the integrity of structures, systems and components (SSC) under design and beyond design conditions, to provide guidance in choosing the optimal ways of dealing with respective challenges to operating and new nuclear power plants as well as other nuclear facilities, and to make use of an integrated approach to design, safety and plant life management.

    The Working Group shall report to the CSNI and assist the Committee with its work. With prior approval of CSNI, the Working Group shall collaborate with or respond to requests from the CSNI Programme Review Group and Working Groups and other NEA committees or other international organizations.

    The Working Group will have three subgroups dealing with a) integrity and ageing of metal structures and components, b) integrity and ageing of concrete structures and c) seismic engineering.

    1. The Working Group shall constitute a forum to exchange views, information and experience on generic technical aspects of integrity and ageing of components and structures, and review, as necessary, national and international programmes concentrating on research, operational aspects and regulation.
    2. The Working Group shall stimulate, in relevant technical areas, new research and recommend and lead possible international co-operative projects.
    3. The Working Group shall a) develop technical positions on specific integrity issues of operating and new nuclear power plants and research reactors covering the entire life cycle; and b) identify areas where further work is needed.
    4. The Working Group shall discuss the potential impact of ageing and other challenges to integrity of SSC on the safety, the regulation, and the operability of operating and new nuclear power plants as well as other nuclear facilities

    Programme of work

    The WGIAGE consists of a main group three subgroups dealing with: a) integrity and ageing of metal structures and components; b) integrity and ageing of concrete structures and; c) seismic engineering. All subgroups deal with the structural integrity issues in a broad sense, and although disciplines are similar (e.g. structural mechanics and materials behaviour), the expertise needed to address group-specific issues is different. The main group serves as an entry point for CSNI. CSNI technical goals related to ageing, which are not covered by the sub-group work, will be managed by the time-limited task groups coordinated by the main group.

    The principal mechanisms currently used by the working group to accomplish its objectives are: a) the conduct of meetings (including annual group meetings and specialist expert meetings and workshops) to share information and plan/coordinate/manage activities; b) the collaborative writing of consensus documents (e.g. state-of-the-art reports, technical reports and technical opinion papers) and; c) highlights related to the integrity and ageing of components and structures via technical notes.

    Recent reports

    WGIAGE reports

    Workshops and conferences 2017

    Workshop on Assessment of Structures Subject to Concrete Pathologies (ASCET) phase 2 on 8-9 May 2017, Ottawa, Ontario, Canada

    Workshop on Benchmark on the Seismic Capacity of Reinforced Concrete Shear Walls (CASH) on 1-2 June 2017, Paris, France

    Workshop on Improving Robustness Assessment of Structures Impacted by a Large Missile at Medium Velocity (IRIS) phase 3 on 13-15 June 2017, Saclay, France

    Contact


    Last reviewed: 22 May 2017