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RESEARCH PRODUCT
Status of ceramic breeder pebble bed thermo-mechanics R&D and impact on breeder material mechanical strength
Lorenzo BoccacciniYixiang GanAlice YingJ. ReimannJon T. Van LewP.a. Di MaioHisashi TanigawaL. MagielsenG. Dell'orcoSander Van TilRatna Kumar AnnabattulaMarc KamlahR. KnitterMikio EnoedaJaap G. Van Der Laansubject
Computer scienceMechanical EngineeringNuclear engineeringPredictive capabilityBlanketCeramic breeder Pebble bed Thermomechanics Phenomenological models Solid breeder blanket designBreeder (animal)Nuclear Energy and Engineeringvisual_artBenchmark (surveying)Mechanical strengthvisual_art.visual_art_mediumGeneral Materials ScienceCeramicPebbleSettore ING-IND/19 - Impianti NucleariCivil and Structural Engineeringdescription
Abstract Among the international fusion solid breeder blanket community, there exists steady progress on the experimental, phenomenological, and numerical characterizations of the pebble bed effective thermo physical and mechanical properties, and of thermomechanic state of the bed under prototypical operating conditions. This paper summarizes recent achievements in pebble bed thermomechanics that were carried out by members of the IEA Fusion Nuclear Technology Subtask I Solid Breeding Blanket. A major goal is on developing predictive capability while identifying a pre-conditioned equilibrium stress state that would warrant pebble bed integrity during operations. The paper reviews and synthesizes existing computational modeling approaches for pebble bed thermomechanics prediction, and differentiating points of convergence/divergence among existing approaches. The progress toward modeling benchmark is also discussed. These advancements have led to a framework to help navigate future research.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-08-01 |