Evaluation of the potential role of cladding in RPV safety analysis

S. Bhandari, C. Cueto-Felgueroso, H. Grebner, M. Horsten, E. Keim, Reijo Pelli, A. Popov, Jurgen Sievers

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)


Although the major objective in the deposition of cladding on the inner surface of an LWR pressure vessel is to prevent the corrosion of the base material, the presence of cladding leads to the consideration of its role in the mechanical analysis of the integrity of the vessel. This role is related to various aspects like:
• favourable thermal exchange barrier
• creation of cracks (most likely being the under-clad-cracks (UCC) representing the covered weld defects or defects created during clad deposit; or defects in the cladding itself whose probability as well as severity is smaller than the UCC).
• behaviour of an UCC • behaviour of a surface crack. One can therefore see that the presence of cladding could lead to favourable as well as unfavourable situations. During the course of this project, information was collected concerning the treatment of cladding aspects along with the major material properties, in various European countries. Finally, the potential role of cladding has been evaluated from the point of view of the RPV safety analyses.
Original languageEnglish
Title of host publicationSevere accidents and other topics in the RPV design 2000
EditorsS.K. Bhandari, K.K. Yoon, Dominique Moinereau
Place of PublicationNew York
PublisherAmerican Society of Mechanical Engineers (ASME)
Publication statusPublished - 2000
MoE publication typeA4 Article in a conference publication
Event ASME 2000 Pressure Vessels and Piping Conference - Seattle, United States
Duration: 23 Jul 200027 Jul 2000

Publication series

SeriesAmerican Society of Mechanical Engineers. Pressure Vessels and Piping Division. Publication PVP


Conference ASME 2000 Pressure Vessels and Piping Conference
Country/TerritoryUnited States


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