CIMEC   24726
CENTRO DE INVESTIGACION DE METODOS COMPUTACIONALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Weld Residual Stresses Modelling. Application to a Nuclear Power Plant Welded Joint
Autor/es:
ALEJANDRO COSIMO; ALBERTO CARDONA; PABLO NOVARA; NÉSTOR CALVO
Lugar:
Bariloche
Reunión:
Congreso; ENIEF 2014, XXI Congreso sobre Métodos Numéricos y sus Aplicaciones; 2014
Institución organizadora:
Centro Atómico Bariloche
Resumen:
Stress Corrosion Cracking (SCC) is a mechanism of failure associated to the growth of long circumferential cracks in welded pipes. Weld Residual Stresses (WRS) highly influence this mechanism of failure. Therefore, the knowledge of residual stresses becomes fundamental in order to predict the growth of cracks by SCC. In this work a weakly coupled thermo-mechanical model is used for modelling the welding process of a large nuclear power plant structure in order to predict WRS. Specifically, the simulation of the welding process of a nozzle weld that connects the reactor pressure vessel and the cold leg of a nuclear reactor facility is studied.