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Estimation of Gurson material parameters in bimetallic weldments for the nuclear reactor heat transport piping system
, N. Arora, S.R. Gupta, B.K. Dutta
Published in
2008
Volume: 222
   
Issue: 12
Pages: 2331 - 2349
Abstract
Bimetallic welds (BMWs) play a critical and indispensable role in the primary heat transport piping system of nuclear reactors. The primary heat transport system itself is the critical part of a nuclear reactor. Any failure of this system can lead to very grave consequences, not only speaking of huge monetary losses resulting from non-utilization of the reactor setup, but also immensely valuable and irreparable loss of human life. This paper describes the experimental efforts towards estimation of Gurson material parameters of base metal and weld metal regions of a BMW so as to use the micromechanical modelling approach for addressing the structural integrity issues in BMWs. © IMechE 2008.
Figures & Tables (29)
  • Figure-0
    Table 1 Chemical composition of base metals, weld metals, ... Expand
  • Figure-1
    Fig. 1 Weld groove preparation for BMW joint (all dimensions ... Expand
  • Figure-2
    Fig. 3 Dimensions of smooth and notched tensile specimen (all ... Expand
  • Figure-3
    Fig. 2 Three stages of material response
  • Figure-4
    Fig. 4 Graph of ∑ N versus εeqpl
  • Figure-5
    Fig. 5 Graph of εeqpl versus f
  • Figure-6
    Fig. 8 Load versus displacement curve for SA 516 Grade ... Expand
  • Figure-7
    Fig. 6 Local void volume fraction versus equivalent plastic ... Expand
  • 21 figures hidden
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About the journal
JournalProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
ISSN09544062