Synopsis
In this paper the concept of in-situ, on-line damage monitors for use in service components where safety, high performance or severe environmental requirements is described. Particular attention is given to applications where low cycle fatigue is of concern. The purpose of these monitors is to provide useful information regarding the damage state of critical components during plant operation rather than to depend on the extrapolation of the up-front design process or on intermittent inspection to estimate performance. Some examples are given of damage monitors currently in use or under development for nuclear boiling water plant applications using the reversing dc electrical potential technique. The concept of remaining life as an on-line process is described. The use of smart monitor that can measure and assess the present and future damage state of a given component and provide the plant operator with important operational information about his plant is discussed.
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References
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© 1987 Elsevier Applied Science Publishers Ltd
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Coffin, L.F. (1987). Damage Monitoring, Life Prediction and Life Extension. In: Rie, KT. (eds) Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3459-7_1
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DOI: https://doi.org/10.1007/978-94-009-3459-7_1
Publisher Name: Springer, Dordrecht
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