Ultrasonic Properties of Reactor Pressure Vessel Strip Cladding

The modelling of ultrasonic wave propagation and beam-defect interactions in reactor pressure vessel cladding is demanding due to its anisotropic structure. It requires good knowledge of the ultrasonic properties in terms of the elastic constants and the intrinsic ultrasonic wave attenuation in order to obtain reliable simulation results. This paper provides experimental input data for mathematical models to simulate ultrasonic inspections of reactor pressure vessels with strip cladding. The measurement of the absolute ultrasonic wave attenuation is a particularly difficult task, and there is a lack of reliable data in the literature. Both a conventional and a more advanced experimental technique are applied to measure the attenuation of longitudinal waves. Reasons for the disagreement between the results obtained by means of the two measurement techniques are discussed.

SELDIS Thomas; 

2009-12-21

BRITISH INST NON-DESTRUCTIVE TESTING

JRC56058

1354-2575,   

http://www.atypon-link.com/BINT/doi/abs/10.1784/insi.2009.51.11.601?journalCode=insi,    https://publications.jrc.ec.europa.eu/repository/handle/JRC56058,   

10.1784/insi.2009.51.11.601,