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ISSN : 1738-1894(Print)
ISSN : 2288-5471(Online)
Journal of Nuclear Fuel Cycle and Waste Technology Vol.4 No.2 pp.139-152
DOI :

사용후핵연료 건식저장용기의 콘크리트 받침대에 대한 구조해석평가

A Structural Analytic Evaluation of a Connote Pad In a Spent Fuel Dry Storage Cask

Dong-Hak Kim, Ki-Seog Seo, Ju-Chan Lee, Yeon-Do Lee, Chun-Hyung Cho, Dae-Ki Lee

Abstract

A spent fuel storage cask is required to prove the safety of a canister under a hypothetical accidental drop condition. A hypothetical accidental drop condition means that a canister is assumed to be a lee drop on to a pad of the storage cask during loading it into a storage cask. A pad of the storage cask absorbs shock to maintain the structural integrities of a canister under a hypothetical accidental drop condition. In this paper a finite element analysis for various pad structures was carried out to improve the structural integrity of a canister under a hypothetical accidental drop condition. A pad of a storage cask was designed a steel structure with concrete. The 1/4 height of a pad was modified with a structure composed of a steel and a polyurethane foam as a impact limiter. The effect of a shape of a steel structure was studied. The effects of the thickness of a steel structure and the density of a polyurethane foam was also studied.

 

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