Influence of Material Parameters and Thermal Parameters on Sealing Performance of Reactor Pressure Vessel under Heat Focusing Effect

Jingyi Tian, Huihua Feng*, Ye Yang, Junming Liang, Yuxiao Kuang, Huiyong Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

In this paper, an effective numerical model is established by combining the fluid-structure coupling and thermomechanical coupling methods to solve complex sealing problems of a reactor pressure vessel (RPV) test simulator under heat focusing effect. Some key factors are considered in the structure and thermal analysis, such as contact nonlinearity, high temperature elastic-plastic, and high temperature compression-resilience performance. The simulation results agree well with the data of test. An analysis is performed to study the effects of material and thermal parameters on sealing performance. The stress and deformation mechanism of bolt flange and gasket connection system is clarified.

Original languageEnglish
Article number041302
JournalJournal of Pressure Vessel Technology, Transactions of the ASME
Volume141
Issue number4
DOIs
Publication statusPublished - 1 Aug 2019

Keywords

  • flexible graphite gasket
  • gasket compression-resilience performance
  • pressure vessel
  • sealing performance
  • thermal deformation

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