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H.S. Lee¹, Y.S. Lee¹, H.L. Jin¹, H.S. Kang², J.Y. Kim² and Y.H. Kang²

¹Department of Mechanical Design Engineering, Chungnam National University, Daejeon, South Korea
²Korea Atomic Energy Research Institute, Daejeon, South Korea

doi:10.4203/ccp.106.255

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H.S. Lee, Y.S. Lee, H.L. Jin, H.S. Kang, J.Y. Kim, Y.H. Kang, "Strength Evaluation of Spacer Grid Assembly of Dual Cooled Fuel under Repeated Impact Loads", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 255, 2014. doi:10.4203/ccp.106.255

Keywords: strength evaluation, impact analysis, 12 by 12 spacer grid assembly, dual cooled fuel, repeated impact load..

Summary

A spacer grid assembly is one of the most important structural components in a dual cooled fuel assembly. The dual cooled annular fuel assembly has a 12 by 12 spacer grid assembly. To prevent the fracture of the fuel rods, the spacer grid should be designed to endure lateral impact loads as a result of lateral seismic accelerations, shipping and handling load. An impact tests was performed by applying the various conditions such as impact speed and direction. However, the spacer grid is very expensive as a result of the high cost of material and welding. Therefore, to evaluate structural integrity of the 12 by 12 nuclear fuel assembly was performed by impact analysis using the ABAQUS-implicit code. In this analysis, the range of the impact velocity was 401 mm/sec to 481 mm/sec. The impact velocity-force curve was derived from the impact velocity and the maximum reaction force. The dynamic characteristic of the 12 by 12 spacer grid assembly was obtained from the dynamic behaviour.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 106 PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: Paper 255 Strength Evaluation of Spacer Grid Assembly of Dual Cooled Fuel under Repeated Impact Loads H.S. Lee¹, Y.S. Lee¹, H.L. Jin¹, H.S. Kang², J.Y. Kim² and Y.H. Kang² ¹Department of Mechanical Design Engineering, Chungnam National University, Daejeon, South Korea ²Korea Atomic Energy Research Institute, Daejeon, South Korea doi:10.4203/ccp.106.255 purchase the full-text of this paper Full Bibliographic Reference for this paper H.S. Lee, Y.S. Lee, H.L. Jin, H.S. Kang, J.Y. Kim, Y.H. Kang, "Strength Evaluation of Spacer Grid Assembly of Dual Cooled Fuel under Repeated Impact Loads", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 255, 2014. doi:10.4203/ccp.106.255 Keywords: strength evaluation, impact analysis, 12 by 12 spacer grid assembly, dual cooled fuel, repeated impact load.. Summary A spacer grid assembly is one of the most important structural components in a dual cooled fuel assembly. The dual cooled annular fuel assembly has a 12 by 12 spacer grid assembly. To prevent the fracture of the fuel rods, the spacer grid should be designed to endure lateral impact loads as a result of lateral seismic accelerations, shipping and handling load. An impact tests was performed by applying the various conditions such as impact speed and direction. However, the spacer grid is very expensive as a result of the high cost of material and welding. Therefore, to evaluate structural integrity of the 12 by 12 nuclear fuel assembly was performed by impact analysis using the ABAQUS-implicit code. In this analysis, the range of the impact velocity was 401 mm/sec to 481 mm/sec. The impact velocity-force curve was derived from the impact velocity and the maximum reaction force. The dynamic characteristic of the 12 by 12 spacer grid assembly was obtained from the dynamic behaviour. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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