Structural and fracture mechanics analysis of ITER vacuum vessel

被引：6

作者：

Iguchi, Masahide ^{[1
]}

Saito, Masakatsu ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Engn Mech, Tsukuba, Ibaraki 3058573, Japan

来源：

FUSION ENGINEERING AND DESIGN | 2007年 / 82卷 / 15-24期

关键词：

ITER; vacuum vessel; fracture mechanics; FEM; plasma disruption;

D O I：

10.1016/j.fusengdes.2007.08.009

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The eddy current is induced on ITER vacuum vessel (VV) by plasma centered disruption (CD). The electromagnetic (EM) force is loaded on VV by an interaction of the eddy current and magnetic field. Since it is difficult to perform in-service inspection due to inaccessibility of VV, it is important to estimate the allowable initial defect from the view point of fracture mechanics in order to assure the structural integrity of W. The purpose of this study is evaluation of acceptable initial crack size of VV by a linear elastic fracture mechanics (LEFM). The fatigue crack growth is evaluated using the cracks modeled by the local three-dimensional (3D) finite element model to calculate a stress intensity factor as a function of crack size. As the results of these analyses, no significant unstable fracture and penetrating VV shell are foreseen by the CD. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：2029 / 2034

页数：6