Finite element stress analysis of spent nuclear fuel disposal canister in a deep geological repository
- Authors
- Kwon, YJ; Choi, JW
- Issue Date
- Oct-2003
- Publisher
- JAPAN SOC MECHANICAL ENGINEERS
- Keywords
- finite element stress analysis; geological repository; spent nuclear fuel; disposal canister; hydrostatic pressure; swelling pressure; bentonite buffer; yield stress
- Citation
- JSME INTERNATIONAL JOURNAL SERIES A-SOLID MECHANICS AND MATERIAL ENGINEERING, v.46, no.4, pp.543 - 549
- Journal Title
- JSME INTERNATIONAL JOURNAL SERIES A-SOLID MECHANICS AND MATERIAL ENGINEERING
- Volume
- 46
- Number
- 4
- Start Page
- 543
- End Page
- 549
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/25927
- DOI
- 10.1299/jsmea.46.543
- ISSN
- 1344-7912
- Abstract
- This paper presents the finite element stress analysis of a spent nuclear fuel disposal canister to provide basic information for dimensioning the canister and configuration of canister components and consequently to suggest the structural analysis methodology for the disposal canister in a deep geological repository which is nowadays very important in the environmental waste treatment technology. Because of big differences in the pressurized water reactor (PWR) and the Canadian deuterium and uranium reactor (CANDU) fuel properties, two types of canisters are conceived. For manufacturing, operational reasons and standardization, however, both canisters have the same outer diameter and length. The construction type of canisters introduced here is a solid structure with a cast insert and a corrosion resistant overpack. The structural stress analysis is carried out using a finite element analysis code, NISA, and focused on the structural strength of the canister against the expected external pressures due to the swelling of the bentonite buffer and the hydrostatic head. The canister must withstand these large pressure loads. Consequently, canisters presented here contain 4 PWR fuel assemblies and 33 X 9 CANDU fuel bundles. The outside diameter of the canister for both fuels is 122 cm and the cast insert diameter is 112 cm. The total length of the canister is 483 cm with the lid/bottom and the outer shell of 5 cm.
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Collections - College of Science and Technology > Department of Mechanical and Design Engineering > 1. Journal Articles
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