Assessment of Steam Generator Tubes with Dual Axial Through-Wall Cracks

Abstract:

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In this paper, conservatisms of current plugging criteria on steam generator tubes are reviewed and six new failure prediction models for dual through-wall cracks are proposed. In order to determine the optimum ones among these local or global failure prediction models, a series of plastic collapse tests and corresponding finite element analyses are carried out with respect to two adjacent axial through-wall cracks in thin plates. Then, reaction force model, plastic zone contact model and COD (Crack Opening Displacement) base model were selected as the optimum ones for integrity assessment of steam generator tubes with dual cracks.

Info:

Periodical:

Solid State Phenomena (Volume 120)

Edited by:

Young-Jin Kim

Pages:

71-76

DOI:

10.4028/www.scientific.net/SSP.120.71

Citation:

Y. S. Chang et al., "Assessment of Steam Generator Tubes with Dual Axial Through-Wall Cracks", Solid State Phenomena, Vol. 120, pp. 71-76, 2007

Online since:

February 2007

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Price:

$35.00

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