Finite element analysis of high-density polyethylene pipe in pipe gallery of nuclear power plants
| Autor: | Fa Yu, Ruobing Yang, Jinyang Zheng, Ying Cui, Anqi Hu, Jianfeng Shi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
020209 energy education 02 engineering and technology 030218 nuclear medicine & medical imaging law.invention 03 medical and health sciences 0302 clinical medicine law Nuclear power plant 0202 electrical engineering electronic engineering information engineering High density polyethylene pipe Stress concentration business.industry Seismic loading Structural engineering Nuclear power lcsh:TK9001-9401 Finite element method Seismic load Pipe in pipe Nuclear Energy and Engineering lcsh:Nuclear engineering. Atomic power High-density polyethylene business |
| Zdroj: | Nuclear Engineering and Technology, Vol 53, Iss 3, Pp 1004-1012 (2021) |
| ISSN: | 1738-5733 |
| DOI: | 10.1016/j.net.2020.08.019 |
| Popis: | High density polyethylene (HDPE) pipe has many advantages over metallic pipe, and has been used in non-safety related application for years in some nuclear power plants (NPPs). Recently, HDPE pipe was introduced into safety related applications. The main difference between safety-related and non-safety-related pipes in NPPs is the design method of extra loadings such as gravity, temperature, and earthquake. In this paper, the mechanical behavior of HDPE pipe under various loads in pipe gallery was studied by finite element analysis (FEA). Stress concentrations were found at the fusion regions on inner surface of mitered elbows of HDPE pipe system. The effects of various factors were analyzed, and the influence of various loads on the damage of HDPE pipe system were evaluated. The results of this paper provide a reference for the design of nuclear safety-related Class 3 HDPE pipe. In addition, as the HDPE pipes analyzed in this paper were suspended in pipe gallery, it can also serve as a supplementary reference for current ASME standard on Class 3 HDPE pipe, which only covers the application for buried pipe application. |
| Databáze: | OpenAIRE |
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