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Information × Registration Number 0217U002187, 0116U006287 , R & D reports Title Development of the generalized procedure and recommended practice for performing the calculated analysis of the stress-strain state and fracture resistance to substantiate the strength and extension of lifetime of RPVs as well as NPP with WWER primary circuit equipment elements using the current methods of consideration of deficiency and deformation history of thermomechanical loading popup.stage_title Head Kharchenko Valeriy V., Доктор технічних наук Registration Date 26-01-2017 Organization Institute for problems of strength NASci of Ukraine popup.description2 The generalized procedure of WWER RPVs fracture resistance calculated analysis in the simulation of emergency scenarios has been developed. The basic tenets of the in-depth RPVs stress-strain state kinetics calculation have been formulated. They involve the current approaches and methods of solution to the non-isothermal thermoplasticity boundary problems and fracture mechanics problems, whose combination defines the RPVs fracture resistance procedure calculation at thermal shock. The fundamental methodological tenets and procedure of the specified elastoplastic SSS calculation as well as fracture resistance of the header-to-PGV-1000 steam generator connector weldment (components of the NPP reactor unit with WWER) have been formulated. The validity of the proposed approaches is shown by using the calculation of the stress-strain state of the WWER-1000 RPV nozzle zone with the postulated defects in the form of surface and undercladding cracks in the simulation of thermal shock mode, and the in-depth fracture resistance calculation of the welded joints with various defects in the form of surface circumferential semi-elliptical crack, as well as with the defect of intricate shape in the form of the extended groove with circumferential semi-elliptical crack in the simulation of operational loading regimes. Product Description popup.authors Банько Світлана Миколаївна Кобельський Сергій Володимирович Кравченко Віктор Іванович Харченко Валерій Володимирович Чирков Олександр Юрійович popup.nrat_date 2020-04-02 Close