STRESS-STRAIN STATE OF THE COOLANT COLLECTOR-TO-NOZZLE WELDED JOINT IN THE PGV-1000M STEAM GENERATOR UNDER THE OPERATING LOADS WITH CONSIDERATION OF RESIDUAL MANUFACTURING STRESSES

摘要

Results are presented for both the calculated assessment of the residual manufacturing stress fields in the simulation of the heat treatment in the vicinity of welded joint No. Ill, and the calculation analysis of operating stresses and the fracture resistance of the collector-to-nozzle welded joint in the PGV-1000M steam generator in the simulation of the operating loading cycle.