Paper Title:
Impact Analysis and Test of the Spacer Grid Assembly for PWRs
  Abstract

The spacer grid assembly, which is an interconnected array of slotted grid straps and welded at the intersections to form an egg crate structure, is one of the main structural components of the nuclear fuel assembly of a Pressurized light Water Reactor (PWR). The spacer grid assembly supports and aligns the fuel rods, guides the fuel assemblies past each other during handling and, if needed, sustains lateral seismic loads. The ability of the spacer grid assembly to resist the lateral loads is usually characterized in terms of its dynamic and static crush strengths, which are acquired from tests. In this study, dynamic buckling tests and finite element analyses on spacer grid assembly specimens are carried out. Comparisons show that the analysis results are in good agreement with the test results to within an 8 % difference range. Therefore, we could predict the crush strength of a spacer grid assembly in advance before performing the dynamic buckling test.

  Info
Periodical
Key Engineering Materials (Volumes 326-328)
Edited by
Soon-Bok Lee and Yun-Jae Kim
Pages
1555-1558
DOI
10.4028/www.scientific.net/KEM.326-328.1555
Citation
K. N. Song, K. H. Yoon, J. J. Lee, K. J. Park, "Impact Analysis and Test of the Spacer Grid Assembly for PWRs", Key Engineering Materials, Vols. 326-328, pp. 1555-1558, 2006
Online since
December 2006
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Price
$32.00
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