Impact Analysis and Test on the Spacer Grid Assembly for PWRs

Kee Nam Song; Kyung Ho Yoon; Heung Seok Kang; Kang Hee Lee

doi:10.4028/www.scientific.net/KEM.297-300.1309

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Transient Dynamic Response of Delaminated Composite Twisted Cylindrical Shells Subjected to Low Velocity Impact
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Fatigue Behavior of Impacted Plain-Weave Glass/Epoxy Composites under Tensile Fatigue Loading
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Impact Behavior Analysis of PC/ABS (50/50) Blends
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A Study on Low Velocity Impact of Woven Glass/Phenolic Composite Laminates Considering Environmental Effects
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Impact Analysis and Test on the Spacer Grid Assembly for PWRs
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Influence of Confinement Condition on Particle Impact Damage in Soda-Lime Glass
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Effect of Particle Impact Velocity on Cone Crack Shape in Ceramic Material
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Impact Fracture Behavior in Alumina Ceramic Plates
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Finite Element Analysis of Brain Damage due to Impact Force with a Three Dimensional Head Model
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 297-300Impact Analysis and Test on the Spacer Grid...

Impact Analysis and Test on the Spacer Grid Assembly for PWRs

Abstract:

A spacer grid assembly is one of the main structural components of the fuel assemblies of Pressurized light Water Reactors. The spacer grid assembly is structurally required to have enough buckling strength under various kinds of lateral loads acting on the fuel assembly so as to keep the fuel assembly straight. The structural performance of the spacer grid assembly is characterized in terms of its dynamic crush strength, which is usually acquired from the test. In this study, a dynamic buckling test and a finite element analysis on the KAERI designed spacer grid assembly are carried out. The pendulum-type tester was used in the test. In the finite element analysis, we proposed an analysis methodology that could predict the dynamic failure behavior of the spacer grid assembly using a commercial finite element code ABAQUS/explicit with appropriate boundary conditions. As a result of the comparisons, the analysis result is in good agreement with the test result to within a 10% difference range. Therefore, we could predict the dynamic behaviors of a spacer grid assembly in advance before performing the dynamic buckling test.

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Periodical:

Key Engineering Materials (Volumes 297-300)

Pages:

1309-1314

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.297-300.1309

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Online since:

November 2005

Authors:

Kee Nam Song, Kyung Ho Yoon, Heung Seok Kang, Kang Hee Lee

Keywords:

Impact Buckling Strength, Nuclear Fuel Assembly, PWR, Spacer Grid Assembly

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References

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