RevistaEngineering Failure Analysis
Año de publicación2009
Integridad estructural / análisis de fallo
Structural integrity of an X-750 jet pump beam of a BWR by means of FITNET FFS procedureFerreño Blanco, Diego | Cicero González, Sergio | Lacalle Calderón, Roberto | Gorrochategui Sánchez, Iñaki | Gutiérrez-Solana Salcedo, Federico |
In this paper, the J–R curves of the X-750 alloy, previously obtained in the rising load test environment, have been implemented in the structural integrity assessment of a jet pump beam of a boiling water reactor manufactured in this material. The analysis was performed with the FITNET FFS procedure considering the in-service loads on the beam. The critical crack lengths for the different scenarios studied have been obtained and, taking into consideration real crack length velocities, the lifespan of the beams were conservatively estimated.