Seismic analysis of PWR-RCC fuel assemblies

A. Preumont; P. Thomson; J. Parent

doi:10.1016/0029-5493(82)90173-X

Seismic analysis of PWR-RCC fuel assemblies

A. Preumont, P. Thomson, J. Parent

Research output › peer-review

Abstract

The present paper investigates the dynamic behaviour of PWR-RCC fuel assemblies under seismic excitation. A simple vibrational model of the fuel assembly is proposed, which leads to natural frequencies whose spacing agree with experimental data. Available experimental results are reviewed. Impact characteristics of Zircaloy spacer grids are also discussed. It is proposed that their soundness criteria be expressed in terms of impact energy rather than in terms of impact force. The computer code CLASH is briefly described; it is utilized to perform a sensitivity analysis. An example of application is also given.

Original language	English
Pages (from-to)	103-119
Number of pages	17
Journal	Nuclear Engineering and Design
Volume	71
Issue number	1
DOIs	https://doi.org/10.1016/0029-5493(82)90173-X
State	Published - 2 Jul 1982

ASJC Scopus subject areas

Nuclear and High Energy Physics
General Materials Science
Nuclear Energy and Engineering
Safety, Risk, Reliability and Quality
Waste Management and Disposal
Mechanical Engineering

Access to Document

10.1016/0029-5493(82)90173-X

Cite this

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title = "Seismic analysis of PWR-RCC fuel assemblies",

abstract = "The present paper investigates the dynamic behaviour of PWR-RCC fuel assemblies under seismic excitation. A simple vibrational model of the fuel assembly is proposed, which leads to natural frequencies whose spacing agree with experimental data. Available experimental results are reviewed. Impact characteristics of Zircaloy spacer grids are also discussed. It is proposed that their soundness criteria be expressed in terms of impact energy rather than in terms of impact force. The computer code CLASH is briefly described; it is utilized to perform a sensitivity analysis. An example of application is also given.",

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AB - The present paper investigates the dynamic behaviour of PWR-RCC fuel assemblies under seismic excitation. A simple vibrational model of the fuel assembly is proposed, which leads to natural frequencies whose spacing agree with experimental data. Available experimental results are reviewed. Impact characteristics of Zircaloy spacer grids are also discussed. It is proposed that their soundness criteria be expressed in terms of impact energy rather than in terms of impact force. The computer code CLASH is briefly described; it is utilized to perform a sensitivity analysis. An example of application is also given.

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