Multiscale development of materials models for fuel erformance simulation

Michael Tonks, Paul Millett, Bulent Biner, Yongfeng Zhang, Richard Williamson, Steve Novasone, Ben Spencer, Jason Hales, Derek Gaston, Cody Permann, David Andrs, Steve Hayes, David Andersson, Christopher Stanek

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Radiation-induced microstructure evolution in UO2, including radiation swelling and fission gas release, drastically affects fuel performance and can eventually result in fuel failure. Traditional fuel performance codes consider these microstructure effects using empirical fits to experimental data. While these empirical models accurately predict material behavior within tested conditions, they cannot predict the behavior outside of those conditions. In order for a fuel performance code to be predictive in a range of operating conditions, it must consider atomistic and microstructure effects. Here, we present the multiscale methodology that is the basis of the MOOSE-BISON-MARMOT suite of fuel performance codes under development at Idaho National Laboratory. MOOSE, the Multiphysics Object-Oriented Simulation Environment, is the basis of the MARMOT fuel microstructure code and the BISON fuel performance code. Here, we show how atomistic simulations are used to develop quantitative models of the effect of radiation damage on microstructure in MARMOT. From these models, mechanistic material constitutive models are developed for the use with BISON. This approach is demonstrated by developing a model of the impact of grain boundary (GB) fission gas bubbles on the effective GB thermal resistance.

Original languageEnglish (US)
Title of host publicationInternational Congress on Advances in Nuclear Power Plants, ICAPP 2013
Subtitle of host publicationNuclear Power - A Safe and Sustainable Choice for Green Future, Held with the 28th KAIF/KNS Annual Conference
PublisherKorean Nuclear Society
Pages56-64
Number of pages9
ISBN (Electronic)9781632660381
StatePublished - Jan 1 2013
EventInternational Congress on Advances in Nuclear Power Plants: Nuclear Power - A Safe and Sustainable Choice for Green Future, ICAPP 2013, Held with the 28th KAIF/KNS Annual Conference - Jeju Island, Korea, Republic of
Duration: Apr 14 2013Apr 18 2013

Publication series

NameInternational Congress on Advances in Nuclear Power Plants, ICAPP 2013: Nuclear Power - A Safe and Sustainable Choice for Green Future, Held with the 28th KAIF/KNS Annual Conference

Other

OtherInternational Congress on Advances in Nuclear Power Plants: Nuclear Power - A Safe and Sustainable Choice for Green Future, ICAPP 2013, Held with the 28th KAIF/KNS Annual Conference
CountryKorea, Republic of
CityJeju Island
Period4/14/134/18/13

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Energy Engineering and Power Technology

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