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

Martín Rengel, Miguel Ángel; Gómez Sánchez, Francisco Javier; Ruiz Hervías, Jesús y 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.

Descripción

Título: Determination of the hoop fracture properties of unirradiated hydrogen-charged nuclear fuel cladding from ring compression tests
Autor/es:
  • Martín Rengel, Miguel Ángel
  • Gómez Sánchez, Francisco Javier
  • Ruiz Hervías, Jesús
  • Caballero Molano, Luis
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of nuclear materials
Fecha: Mayo 2013
Volumen: 436
Materias:
Escuela: E.T.S.I. Caminos, Canales y Puertos (UPM)
Departamento: Ciencia de los Materiales
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

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.

Más información

ID de Registro: 29083
Identificador DC: http://oa.upm.es/29083/
Identificador OAI: oai:oa.upm.es:29083
Identificador DOI: 10.1016/j.jnucmat.2013.01.311
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0022311513003528
Depositado por: Memoria Investigacion
Depositado el: 23 Jun 2014 11:48
Ultima Modificación: 01 Jun 2015 22:56
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