Title :
Structural Analysis of the ITER Thermal Shield for Final Design Verification
Author :
Chang Hyun Noh ; Kwanwoo Nam ; Woo Ho Chung ; Dong Kwon Kang ; Kyoung-O Kang ; Hee Jae Ahn ; Her, N.I. ; Hamlyn-Harris, C.
Author_Institution :
Nat. Fusion Res. Inst., Daejeon, South Korea
Abstract :
The structural integrity of the ITER thermal shield (TS) has been verified by structural analysis. In this paper, the analysis process methodology and demonstration of the structural integrity for the TS are described. The analysis is performed for the TS global models and detailed models, such as supports and joints. TS joints in the shell model are modeled using orthotropic material properties. To verify the structural reliability for the TS, plastic collapse, buckling, ratcheting, and fatigue are assessed in accordance with ASME Section VIII, Div. 2.
Keywords :
Tokamak devices; buckling; condition monitoring; fatigue; plasma toroidal confinement; shielding; ASME Section VIII, Div. 2; ITER thermal shield; analysis process methodology; buckling; fatigue; final design verification; orthotropic material properties; plastic collapse; ratcheting; shell model; structural analysis; structural integrity; structural reliability; Analytical models; Force; Joints; Load modeling; Numerical models; Stress; Thermal analysis; Cryostat thermal shield (CTS); ITER; ITER thermal shield (TS); vacuum vessel thermal shield (VVTS); vacuum vessel thermal shield (VVTS).;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2014.2321173
