Determination of the hoop fracture properties of unirradiated hydrogen-charged nuclear fuel cladding from ring compression tests

Martín Rengel, Miguel Ángel and Gómez Sánchez, Francisco Javier and Ruiz Hervías, Jesús and Caballero Molano, Luis (2013). Determination of the hoop fracture properties of unirradiated hydrogen-charged nuclear fuel cladding from ring compression tests. "Journal of nuclear materials", v. 436 (n. 1-3); pp. 123-129. ISSN 0022-3115. https://doi.org/10.1016/j.jnucmat.2013.01.311.

Description

Title: Determination of the hoop fracture properties of unirradiated hydrogen-charged nuclear fuel cladding from ring compression tests
Author/s:
  • Martín Rengel, Miguel Ángel
  • Gómez Sánchez, Francisco Javier
  • Ruiz Hervías, Jesús
  • Caballero Molano, Luis
Item Type: Article
Título de Revista/Publicación: Journal of nuclear materials
Date: May 2013
ISSN: 0022-3115
Volume: 436
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In this work, a new methodology is devised to obtain the fracture properties of nuclear fuel cladding in the hoop direction. The proposed method combines ring compression tests and a finite element method that includes a damage model based on cohesive crack theory, applied to unirradiated hydrogen-charged ZIRLOTM nuclear fuel cladding. Samples with hydrogen concentrations from 0 to 2000 ppm were tested at 20 �C. Agreement between the finite element simulations and the experimental results is excellent in all cases. The parameters of the cohesive crack model are obtained from the simulations, with the fracture energy and fracture toughness being calculated in turn. The evolution of fracture toughness in the hoop direction with the hydrogen concentration (up to 2000 ppm) is reported for the first time for ZIRLOTM cladding. Additionally, the fracture micromechanisms are examined as a function of the hydrogen concentration. In the as-received samples, the micromechanism is the nucleation, growth and coalescence of voids, whereas in the samples with 2000 ppm, a combination of cuasicleavage and plastic deformation, along with secondary microcracking is observed.

More information

Item ID: 29083
DC Identifier: http://oa.upm.es/29083/
OAI Identifier: oai:oa.upm.es:29083
DOI: 10.1016/j.jnucmat.2013.01.311
Official URL: http://www.sciencedirect.com/science/article/pii/S0022311513003528
Deposited by: Memoria Investigacion
Deposited on: 23 Jun 2014 11:48
Last Modified: 01 Jun 2015 22:56
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