Effect of irradiation on the impact and seismic response of a spent fuel storage and transport cask |
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| Authors: | Young Shin Lee Hyun Soo Kim Young Hwan Kang Sung Hwan Chung Young Jin Choi |
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| Affiliation: | a Department of Mechanical Design Engineering, Chungnam National University, 220 Kung-Dong, Yuseong, Daejeon 305-764, South Korea;b Korea Atomic Energy Research Institute, 105 Dukjin-Dong, Yuseong, Daejeon 306-600, South Korea;c Nuclear Environment Technology Institute, P.O. Box 149, Yuseong, Daejeon, South Korea |
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| Abstract: | The spent fuel storage and transport cask must withstand various accident conditions such as fire, free drop and puncture in accordance with the requirement of the IAEA and domestic regulations. The spent fuel storage and transport cask should maintain the structural safety not to release radioactive material in any condition. And also the effects of the irradiation should be considered because the spent fuels stored in the cask for a long time and be possible to change the mechanical properties of the cask.In this study, the changed mechanical properties of the cask after irradiation for the 30 years storage periods are assumed and applied to the impact analysis using ABAQUS/Explicit code and seismic analysis using ANSYS code. The stress intensity on each part of the cask is calculated and the effects of irradiation are studied and structural integrity of the package is evaluated. |
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