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Title: Crack initiation and crack growth assessment of a high pressure steam chest
Authors: Payten, WM
Wei, T
Snowden, KU
Bendeich, PJ
Law, M
Charman, D
Keywords: Ductility
Crack propagation
Issue Date: Jan-2011
Publisher: Elsevier
Citation: Payten, W. M., Wei, T., Snowden, K. U., Bendeich, P., Law, M., & Charman, D. (2011). Crack initiation and crack growth assessment of a high pressure steam chest. International Journal of Pressure Vessels and Piping, 88(1), 34-44. doi:10.1016/j.ijpvp.2010.11.003
Abstract: Extensive cracking had occurred in a number of high pressure steam chests. An assessment was undertaken based on the R5 British Energy methodology to assess the components for both creep–fatigue damage initiation and crack growth analysis to determine fitness for purpose. The analysis determined that the remaining base rupture endurance life of the component was greater then 1 million hours, however, due to the start-up and shutdown ramp rates, creep–fatigue damage greater then unity has occurred leading to crack initiation in a number of locations. These cracks were confirmed during internal inspection of the steam chest. A subsequent crack growth analysis determined that the component could safely be returned to service for the expected future life of the station. © 2011, Elsevier Ltd.
Gov't Doc #: 3321
ISSN: 0308-0161
Appears in Collections:Journal Articles

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