A comparison between finite element modeling and various thermographic non-destructive testing techniques for the quantification of the thermal integrity of macro-brush plasma facing components used in a tokamak

被引：0

作者：

Pandya, Santosh P. ^{[1
]}

Pandya, Shwetang N. ^{[1
]}

Patil, Yashashri V. ^{[1
]}

Krishnan, Deepu S. ^{[1
]}

Murugesan, Menaka ^{[2
]}

Sharath, D. ^{[2
]}

Singh, K. Premjit ^{[1
]}

Khan, Md. Shoaib ^{[1
]}

Arafat, M. ^{[3
]}

Biju, N. ^{[4
]}

Khirwadkar, Samir S. ^{[1
]}

Govidarajan, Jagannathan ^{[1
]}

Venkatraman, B. ^{[2
]}

Balasubramaniam, Krishnan ^{[3
]}

机构：

[1] Inst Plasma Res, Indira Bridge 382428, Gandhinagar, India

[2] Indira Gandhi Ctr Atom Res, Kalpakkam 603102, Tamil Nadu, India

[3] Indian Inst Technol, Ctr NDE, Chennai 600036, Tamil Nadu, India

[4] Cochin Univ Sci & Technol, Sch Engn, Cochin 682022, Kerala, India

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2016年 / 87卷 / 02期

关键词：

QUALIFICATION; DEFECT;

D O I：

10.1063/1.4940728

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The plasma facing components (PFCs) inside a tokamak are typically exposed to extremely high heat flux of the order of MW/m(2). The brazing quality between the plasma facing materials (PFMs) and the heat sink will determine the structural integrity and hence the effective service life of these PFCs. Suitable non-destructive testing (NDT) techniques for the pre-qualification of these components are thus essential to evaluate their structural integrity at various stages of their service life. Macro-brush type mockups of prototype PFCs with graphite as PFM have been inspected for their brazing quality using different active Infrared (IR)-thermographic NDT techniques. The results obtained from these techniques are compared and discussed. The brazing quality was quantified by establishing a comparison between the experimental results and the results from Finite Element Analysis (FEA). The percentage of contact between the PFM and the substrate was varied in FEA. FEA results when compared with experiments shows that tiles have different amounts of contact with the substrate ranging between 10% and 80%. (C) 2016 AIP Publishing LLC.

引用

页数：11