Quantitative thermal imperfection definition using non-destructive infrared thermography on an advanced DEMO divertor concept

F. Gallay, M. Richou, N. Vignal, M. Lenci, S. Roccella, G. Kermouche, E. Visca, J.H. You

Research output: Contribution to conferencePaper

4 Citations (Scopus)

Abstract

The future DEMO divertor is currently under conceptual design within the European Consortium. In this regard, several concepts have been proposed and mock-ups have been fabricated to investigate their thermo-mechanical behaviour. Indeed, as a key plasma facing component, the divertor will have to withstand extreme thermal loads (up to 20 MW m-2during slow transient events) and will have to be able to exhaust a large amount of heat. The presence of structural defects in the component may significantly affect the thermal response and must therefore be considered. A non-destructive technique based on infrared thermography is proposed here to detect defects in mock-ups where graded material was used as an interlayer between the heatsink material and the armor material. Two methods to characterize the size and location of such defects are presented. It was shown that finite element analysis combined with experimental data from infrared thermography, provides accurate means to assess quantitatively the size and position of thermal imperfections.
Original languageEnglish
DOIs
Publication statusPublished - 1 Dec 2017
Externally publishedYes
Event16th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2017 - Neuss/Dusseldorf, Germany
Duration: 1 Dec 2017 → …

Conference

Conference16th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2017
CountryGermany
CityNeuss/Dusseldorf
Period1/12/17 → …

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

Cite this

Gallay, F., Richou, M., Vignal, N., Lenci, M., Roccella, S., Kermouche, G., Visca, E., & You, J. H. (2017). Quantitative thermal imperfection definition using non-destructive infrared thermography on an advanced DEMO divertor concept. Paper presented at 16th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2017, Neuss/Dusseldorf, Germany. https://doi.org/10.1088/1402-4896/aa878e