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This report reviews techniques for continuous monitoring and surveillance for structural integrity engineering assessments and plant-life management of LWR primary coolant circuits. Continuous monitoring in this context involves loadings, transients, vibrations, temperatures, material properties, defects present and their characteristics, loose parts and leaks. All these aspects are examined in detail. For the measurement of changes in the mechanical properties of the structural materials, surveillance programmes for assessing irradiation embrittlement and a number of possibilities for the non-destructive monitoring of such changes are presented. For monitoring structural damage, the role of in-service inspection (ISI) using non-destructive testing methods is mentioned, and the way that other methods, especially acoustic emission measurements, could supplement or in part replace such ISI is discussed.

Additional information

Authors: NICHOLS R W, Nichols Consultancies, Tilehurst, Reading (GB)
Bibliographic Reference: EUR 13409 EN (1991) 50 pp., FS, ECU 6.25
Availability: (2)
ISBN: ISBN 92-826-0523-X
Record Number: 199110493 / Last updated on: 1994-12-02
Original language: en
Available languages: en
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