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Information × Registration Number 0220U101068, 0118U005294 , R & D reports Title Development of recommendations for improving the accepted calculation methods for assessing the technical condition and extending the life of the internal-body devices, as well as approaches for determining the residual stresses in the zone of welded joints and surfacing of the reactor vessel VVER-1000. popup.stage_title Head Mаkhnenko Oleh V., Доктор технічних наук Registration Date 31-01-2020 Organization E.O.Paton Elektric Welding Institute National Academy of scinces of Ukraine popup.description2  The distribution of residual technological stresses in the zone of welded joints of the fence and mine of the VVER-1000 reactor plant was determined on the basis of mathematical modeling of the kinetics of the stress-strain state. Idealized distributions of residual stresses are proposed with the aim of including them in the normative documents for operational justification of durability and resource of safe operation of intrinsic devices. The problem of radiation swelling of the fence while reducing the gap between the fence and the inner hull is solved. The main recommendations for improving the current regulatory document are formulated. The prediction of residual stress distributions in different zones of the VVER-1000 reactor body during the surfacing of the protective corrosion layer was performed taking into account the variation of the technological parameters of the surfacing and heat treatment Product Description popup.authors Velikovanenko Elena А. popup.nrat_date 2020-04-02 Close