Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Topology optimization of tie-down structure for transportation of metal cask containing spent nuclear fuel

  • Jeong, Gil-Eon (Radwaste Transportation and Storage Research Team, Korea Atomic Energy Research Institute) ;
  • Choi, Woo-Seok (Radwaste Transportation and Storage Research Team, Korea Atomic Energy Research Institute) ;
  • Cho, Sang Soon (Radwaste Transportation and Storage Research Team, Korea Atomic Energy Research Institute)
  • Received : 2020.10.15
  • Accepted : 2021.01.20
  • Published : 2021.07.25
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Abstract

Spent nuclear fuel, which can degrade during long-term storage, must be transported intact in normal transport conditions. In this regard, many studies, including those involving Multi-Modal Transportation Test (MMTT) campaigns, have been conducted. In order to transport the spent fuel safely, a tie-down structure for supporting and transporting a cask containing the spent fuel is essential. To ensure its structural integrity, a method for finding an optimum conceptual design for the tie-down structure is presented. An optimized transportation test model of a tie-down structure for the KORAD-21 metal cask is derived based on the proposed optimization approach, and the transportation test model is manufactured by redesigning the optimized model to enable its producibility. The topology optimization approach presented in this paper can be used to obtain optimum conceptual designs of tie-down structures developed in the future.

Keywords

Acknowledgement

This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry and Energy (MOTIE) of the Republic of Korea. (No. 20171701201750). And this study was partially supported by the Nuclear Safety Research Program through the Korea Foundation of Nuclear Safety(KOFONS), granted financial resource from the Nuclear Safety and Security Commission(NSSC), Republic of Korea(No.1803015).

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