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Thermal–Mechanical Responses of the First Wall in CFETR Under Transient Events

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Abstract

In this paper, the thermal–mechanical responses of the first wall (FW) composed of pure tungsten (W) and China Low Activation Martensitic steel in China Fusion Engineering Test Reactor are predicted under the normal state and the transient events, i.e., major disruption (MD), vertical displacement events (VDEs) and edge localized modes (ELMs), using finite element method (FEM). The temperature distribution in the armor material and structural material is predicted and analyzed, and the temperature induced thermal stress is obtained through a fully coupled thermal-stress analysis module. The comparative simulation results reveal that the short duration time of MD and ELMs have less thermal/mechanical effects on the FW than that of the long deposition time of VDEs.

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Acknowledgements

This work was supported by the National Magnetic Confinement Fusion Energy Research Project of China (2015GB118001).

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Authors and Affiliations

  1. Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Ministry of Education), Dalian University of Technology, Dalian, 116024, China

    Yuanyuan Wang & Jijun Zhao

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  1. Yuanyuan Wang
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  2. Jijun Zhao
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Correspondence to Yuanyuan Wang or Jijun Zhao.

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Wang, Y., Zhao, J. Thermal–Mechanical Responses of the First Wall in CFETR Under Transient Events. J Fusion Energ 36, 49–57 (2017). https://doi.org/10.1007/s10894-017-0121-6

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