Research on Structural Response Characteristics of Research Reactor Fuel Assembly During Collision

Liu Menglong; Wang Haoyu; Zhou Yi; Zhu Fawen; Yuan Pan; Huang Shan; Deng Shuang

doi:10.13832/j.jnpe.2022.03.0220

Volume 43 Issue 3

Jun. 2022

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Article Navigation > Nuclear Power Engineering > 2022 > 43(3): 220-225

Liu Menglong, Wang Haoyu, Zhou Yi, Zhu Fawen, Yuan Pan, Huang Shan, Deng Shuang. Research on Structural Response Characteristics of Research Reactor Fuel Assembly During Collision[J]. Nuclear Power Engineering, 2022, 43(3): 220-225. doi: 10.13832/j.jnpe.2022.03.0220

Citation:

Liu Menglong, Wang Haoyu, Zhou Yi, Zhu Fawen, Yuan Pan, Huang Shan, Deng Shuang. Research on Structural Response Characteristics of Research Reactor Fuel Assembly During Collision[J]. Nuclear Power Engineering, 2022, 43(3): 220-225. doi: 10.13832/j.jnpe.2022.03.0220

Citation:

Liu Menglong, Wang Haoyu, Zhou Yi, Zhu Fawen, Yuan Pan, Huang Shan, Deng Shuang. Research on Structural Response Characteristics of Research Reactor Fuel Assembly During Collision[J]. Nuclear Power Engineering, 2022, 43(3): 220-225. doi: 10.13832/j.jnpe.2022.03.0220

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Research on Structural Response Characteristics of Research Reactor Fuel Assembly During Collision

doi: 10.13832/j.jnpe.2022.03.0220

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2022-03-01
Rev Recd Date: 2022-03-16
Publish Date: 2022-06-07

Abstract

Abstract

The structural response characteristics of typical research reactor fuel assembly collision process are numerically simulated. The stress response characteristics of the fuel assembly, the bearing characteristics of the positioning structure of the fuel element and the protective effect of the filling cushion material on the collision of the fuel assembly during the collision are analyzed. It is found that there is an obvious stress concentration near the end of the fuel element during the collision, and increasing the cladding length at the end of the fuel element can avoid the effect of stress concentration on the core. The load borne by the end positioning structure of the fuel element is significantly greater than that in the middle, and strengthening the strength of the end positioning structure can improve the bearing capacity of the fuel assembly; the cushion material has a good energy absorption and protection function for the fuel assembly during the collision, and can smooth the change of kinetic energy in the collision and the structural vibration after the collision.
- Fuel assembly,
- Collision analysis,
- Research reactor,
- Positioning structure,
- Cushion material

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References

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Research on Structural Response Characteristics of Research Reactor Fuel Assembly During Collision

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