The evaluation of deformation and fracture of Gilsocarbon graphite subject to service environments: Experimental and modelling

B. Savija, G. E. Smith, P. J. Heard, E. Sarakinou, J. E. Darnbrough, K. R. Hallam, E. Schlangen, P.E.J. Flewitt

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

Commercial graphites are used for a wide range of applications. For example, Gilsocarbon graphite is used within the reactor core of Advanced Gas Cooled Reactors (UK) as a moderator. In service, the mechanical properties of the graphite are changed as a result of neutron irradiation induced defects and porosity arising from radiolytic oxidation. In this paper, we discuss measurements undertaken of mechanical properties at the micro-length-scale for virgin and irradiated material. These data provide the necessary inputs to an experimentally-informed model that predicts the deformation and fracture properties of Gilsocarbon graphite at the centimetre-length-scale. The results provide an improved understanding of how the mechanical properties and fracture characteristics of this type of graphite change as a result of exposure to the service environment.

Original languageEnglish
Title of host publicationAdvances in Fracture and Damage Mechanics XVI - 16th FDM
PublisherTrans Tech Publications
Pages91-94
Number of pages4
Volume754 KEM
ISBN (Print)9783035711684
DOIs
Publication statusPublished - 2017
Event16th International Conference on Fracture and Damage Mechanics, 2017 - Florence, Italy
Duration: 18 Jul 201720 Jul 2017

Publication series

NameKey Engineering Materials
Volume754 KEM
ISSN (Print)10139826

Conference

Conference16th International Conference on Fracture and Damage Mechanics, 2017
CountryItaly
CityFlorence
Period18/07/1720/07/17

Keywords

  • Mechanical properties
  • Multi-scale modelling
  • Neutron irradiation
  • Nuclear graphite

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    Savija, B., Smith, G. E., Heard, P. J., Sarakinou, E., Darnbrough, J. E., Hallam, K. R., Schlangen, E., & Flewitt, P. E. J. (2017). The evaluation of deformation and fracture of Gilsocarbon graphite subject to service environments: Experimental and modelling. In Advances in Fracture and Damage Mechanics XVI - 16th FDM (Vol. 754 KEM, pp. 91-94). (Key Engineering Materials; Vol. 754 KEM). Trans Tech Publications. https://doi.org/10.4028/www.scientific.net/KEM.754.91