O.V. Makhnenko, Dr Sc. (Eng.), G.Yu. Saprykina, Cand. Sc. (Eng.),
Paton Institute of Electric Welding, NAS of Ukraine
11, Malevich St, Kyiv, 03680, Ukraine, e-mail:
Èlektron. model. 2018, 40(2):71-94
The design features and welding techniques and procedures of the reactor shell have been analyzed. The technique of design determination of welding residual stresses is stated. The models of deformation processes and temperature distribution during welding heating have been constructed. Modeling of the stressed state during welding, surfacing and heat treatment of the ring joint of the PWR-1000 reactor vessel was performed. The results of tracking the development of stresses in the process of welding, surfacing, heat treatment of the welded joint of the reactor PWR-1000 shell are shown; the computed values of residual stresses in the welded joint zone have been compared with experimental data.
reactor, finite element method, welding residual stresses, models of deformation processes, temperature distribution.
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