학술논문
Mechanical Integrity Evaluation on the Degraded Cladding Tube of Spent Nuclear Fuel Under Axial and Bending Loads During Transportation
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- 영문명
- 발행기관
- 한국방사성폐기물학회
- 저자명
- Seong-Ki Lee Dong-Hyo Lee Joon-Kyoo Park Jae-Hoon Kim
- 간행물 정보
- 『Journal of Nuclear Fuel Cycle and Waste Technology (JNFCWT)』Vol.19 No.4, 491~501쪽, 전체 11쪽
- 주제분류
- 공학 > 공학일반
- 파일형태
- 발행일자
- 2021.12.30
4,120원
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국문 초록
This paper aims to evaluate the mechanical integrity for Spent Nuclear Fuel (SNF) cladding under lateral loads during transportation. The evaluation process requires a conservative consideration of the degradation conditions of SNF cladding, especially the hydride effect, which reduces the ductility of the cladding. The dynamic forces occurring during the drop event are pinch force, axial force and bending moment. Among those forces, axial force and bending moment can induce transverse tearing of cladding. Our assessment of 14 × 14 PWR SNF was performed using finite element analysis considering SNF characteristics. We also considered the probabilistic procedures with a Monte Carlo method and a reliability evaluation. The evaluation results revealed that there was no probability of damage under normal conditions, and that under accident conditions the probability was small for transverse failure mode.
영문 초록
목차
키워드
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