Structural integrity of hydrided nuclear fuel cladding

Autor: M. A. Martin-Rengel, Elena Torres, F. Javier Gomez, J. Ruiz-Hervias
Rok vydání: 2012
Předmět:
Zdroj: MRS Proceedings. 1475
ISSN: 1946-4274
0272-9172
DOI: 10.1557/opl.2012.569
Popis: The structural integrity of nuclear fuel cladding is affected by the precipitation of hydrides during operation, which may embrittle the cladding. The aim of this work is to obtain the mechanical and fracture properties of the cladding as a function of the hydrogen content and testing temperature. To this end, the embrittlement caused by circumferential hydrides was simulated on unirradiated fuel cladding samples in the laboratory. The structural integrity of the cladding was assessed at different temperatures (20, 135 and 300ºC), by using the ring compression test. The mechanical properties and the fracture energy were calculated from the experimental load vs. displacement curves, by means of a finite element model which incorporates the cohesive crack model.
Databáze: OpenAIRE
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