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| Home > Publications database > Evaluation of the cool-down behaviour of ITER FW beryllium tiles for an early failure detection |
| Home > Publications database > Evaluation of the cool-down behaviour of ITER FW beryllium tiles for an early failure detection |
| Journal Article | FZJ-2016-05457 |
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2016
Elsevier
Amsterdam [u.a.]
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Please use a persistent id in citations: http://hdl.handle.net/2128/13371 doi:10.1016/j.nme.2016.08.009
Abstract: The design of the first wall in ITER foresees several hundred thousand beryllium tiles, which are bonded to the water-cooled CuCrZr supporting structure. Due to the nature of a Tokamak reactor this bonding is faced to thermal fatigue. Since the failure of a single tile might already have a major impact on the operability of ITER, comprehensive high heat flux tests are performed on prototypes prior to the acceptance of manufacturing procedures. For a deeper understanding of the temperature curves, which were and will be measured by IR devices of these first wall prototypes, thermo-mechanical FEM simulations shall demonstrate the possibilities of an early bonding failure detection. Hereby, the maximum temperatures for each cycle as well as the cool-down behaviour are the input data.
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