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Thermal-structural analysis for ITER in-wall shielding block
Authors:Junchuan Hao  Yuntao Song  Weiyue Wu  Shuangsong Du  X. Wang  K. Ioki
Affiliation:1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 200031, China;2. ITER Organization, Route de Vinon sur Verdon, 13115 Saint Paul Lez Durance, France
Abstract:In order to verify the design strength of the in-wall shielding (IWS) blocks of the ITER, thermal-structural analyses of one IWS block under vacuum vessel (VV) baking and plasma operation conditions have been respectively performed with finite element (FE) method. Among the complicated operation scenarios of the ITER, two critical types of combined loads required by the load specification of IWS were applied on the shielding block. The stress of the block is judged by American Society of Mechanical Engineers (ASME) criterion. Results show that the structure of this block has enough safety margin, and it also supplies detailed information of the stress distribution in concerned region under certain loads.
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