Paper Title:
Measurement of Residual Stresses within a PWR Swaged Heater Tube
  Abstract

Frequent failures of the pressuriser heater tubes used in Pressurised Water Reactors (PWRs) have been found. Axial cracks initiating from the tube outer diameter have been detected in some tubes as well as the resulting electrical problems. Replacement of the heater tubes requires an undesirably prolonged plant shutdown. In order to better understand these failures a series of residual stress measurements were carried out to obtain the near surface and through-thickness residual stress profiles in a stainless steel pressuriser heater tube. Three different residual stress measurement techniques were employed namely, Deep-Hole Drilling (DHD), Incremental Centre Hole Drilling (ICHD) and Sachs’ Boring (SB) to measure the through thickness residual stress distribution in the heater tubes. Results showed that the hoop stresses measured using all three techniques were predominantly tensile at all locations, while the axial stresses were found to be tensile at the surface and both tensile and compressive as they reduce to small magnitudes within the tube. The magnitude of the in-plane shear stresses was small at all measurement depths at all locations. The various measurement methods were found to complement each other well. All the measurements revealed a characteristic profile for the through-thickness residual stress distribution.

  Info
Periodical
Edited by
R. L. Burguete, M. Lucas, E. A. Patterson, S. Quinn
Pages
279-284
DOI
10.4028/www.scientific.net/AMM.70.279
Citation
D.M. Goudar, E. J. Kingston, M. C. Smith, S. Hossain, "Measurement of Residual Stresses within a PWR Swaged Heater Tube", Applied Mechanics and Materials, Vol. 70, pp. 279-284, 2011
Online since
August 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Li Jun Han, Yong Nian He, Hou Quan Zhang
Abstract:A complete stress-strain experiment curve, gained through exerting low confining pressure on brittle rock, reflects the deformation and...
70
Authors: Jing Si Huo, Guo Wang Huang, Yan Xiao
Abstract:This paper experimentally investigated the effects of axial load level on the residual strength and stiffness of concrete-filled steel...
769
Authors: B. Li, J. Yu, Suo Qing Yu, A.B. Wang, Y.H. Jiang, Y.H. Zhang
Abstract:The forging method with horizontal V-shaped anvils (HVA) is effective in the control of inner stress states, metal tissue, etc. FEM numerical...
2170
Authors: Hong Yuan Tang, Wei Lin
Chapter 1: Structural Engineering
Abstract:This paper uses ANSYS finite element program to do the nonlinear finite element analysis on steel reinforced concrete L-shaped short-shear...
571
Authors: Lin Li
Chapter 6: Geotechnical Engineering and Underground Space Structure
Abstract:Shrinkage induced tensile force was observed in a 264m long reinforced concrete struts through field monitoring during a foundation...
2880