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Residual stress in a laser welded EUROFER blanket module assembly using non-destructive neutron diffraction techniques
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Hughes, Darren J., Koukovini-Platia, E. and Heeley, E. L. (2014) Residual stress in a laser welded EUROFER blanket module assembly using non-destructive neutron diffraction techniques. Fusion Engineering and Design, Volume 89 (Number 2). pp. 104-108. doi:10.1016/j.fusengdes.2013.12.041 ISSN 09203796.
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Official URL: http://dx.doi.org/10.1016/j.fusengdes.2013.12.041
Abstract
Whilst the structural integrity and lifetime considerations in welded joints for blanket modules can be predicted using finite element software, it is essential to prove the validity of these simulations. This paper provides detailed analysis for the first time, of the residual stress state in a laser-welded sample with integral cooling channels. State-of-the-art non-destructive neutron diffraction was employed to determine the triaxial stress state and to understand microstructural changes around the heat affected zone. Synchrotron X-ray diffraction was used to probe the variation of strain-free lattice reference parameter around the weld zone allowing correction of the neutron measurements. This paper details an important experimental route to validation of predicted stresses in complex safety-critical reactor components for future applications.
Item Type: | Journal Article | ||||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||
Journal or Publication Title: | Fusion Engineering and Design | ||||||||||
Publisher: | Elsevier Science BV | ||||||||||
ISSN: | 09203796 | ||||||||||
Official Date: | February 2014 | ||||||||||
Dates: |
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Volume: | Volume 89 | ||||||||||
Number: | Number 2 | ||||||||||
Page Range: | pp. 104-108 | ||||||||||
DOI: | 10.1016/j.fusengdes.2013.12.041 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access |
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