Numerical analysis for thermal and mechanical properties of pebble bed

Shinji Ebara, Yasutaka Harai, Takehiko Yokomine, Akihiko Shimizu

Research output: Contribution to journalArticlepeer-review


In solid breeder blanket design of fusion power plants, the ceramic breeder pebble bed plays a very important role. Its mechanical and thermal properties are necessary to design the blanket. In this study, thermomechancal properties of the bed such as effective thermal conductivity and stress-strain relation are investigated by means of numerical simulation. A discrete element manner is adopted in the simulation in order to clarify the influence of the individual particle properties upon the bulk behavior. As a result, the thermo-mechanical properties of pebble bed were well re-created in a computational space by means of the numerical model used in this study.

Original languageEnglish
Pages (from-to)148-152
Number of pages5
JournalFusion Science and Technology
Issue number1
Publication statusPublished - 2009 Jul
Externally publishedYes

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering


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