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

Volume

42

Issue

6

fYear

2014

fDate

Jun-14

Firstpage

1770

Lastpage

1774

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).;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2014.2321173

Filename

6816036