Pretest fracture evaluation of the NESC-1 spinning-cylinder experiment

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Description

This paper describes a pretest fracture analysis of the cylinder specimen being used in the Network for Evaluating Steel Components (NESC) large-scale spinning-cylinder project (NESC-1). Organized as an international forum to exchange information on procedures for structural integrity assessment, to collaborate on specific projects, and to promote the harmonization of international standards, the NESC is currently focusing on a research project funded by United Kingdom Health and Safety Executive (HSE) to study the total process of structural integrity assessments of aged reactor pressure vessels (RPVs) containing subclad cracks. The intent is to have the problem studied by a wide range ... continued below

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9 p.

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Keeney, J.A.; Bass, B.R.; Williams, P.T. & Pugh, C.E. December 1, 1997.

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Description

This paper describes a pretest fracture analysis of the cylinder specimen being used in the Network for Evaluating Steel Components (NESC) large-scale spinning-cylinder project (NESC-1). Organized as an international forum to exchange information on procedures for structural integrity assessment, to collaborate on specific projects, and to promote the harmonization of international standards, the NESC is currently focusing on a research project funded by United Kingdom Health and Safety Executive (HSE) to study the total process of structural integrity assessments of aged reactor pressure vessels (RPVs) containing subclad cracks. The intent is to have the problem studied by a wide range of organizations involved in RPV safety assessment. In this project, important safety assessment issues are being investigated by inspection and analysis of a spinning cylinder test which was performed at the AEA Technology facility at Risley, UK. Thermoelastic-plastic analyses were carried out for a clad cylinder model with a 74-mm-deep through-clad inner-surface crack. For this loading, the analytical results indicate that cleavage initiation may be achieved. The intervention of warm prestressing and loss of constraint may make cleavage initiation difficult to achieve in the heat-affected zone (HAZ) and near-HAZ regions.

Physical Description

9 p.

Notes

INIS; OSTI as DE98001895

Source

  • 1998 ASME/JSME joint pressure vessel and piping (PVP) conference, San Diego, CA (United States), 26-30 Jul 1998

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  • Other: DE98001895
  • Report No.: ORNL/CP--95835
  • Report No.: CONF-980708--
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 654096
  • Archival Resource Key: ark:/67531/metadc706915

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  • December 1, 1997

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  • Sept. 12, 2015, 6:31 a.m.

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  • May 5, 2016, 8:49 p.m.

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Keeney, J.A.; Bass, B.R.; Williams, P.T. & Pugh, C.E. Pretest fracture evaluation of the NESC-1 spinning-cylinder experiment, article, December 1, 1997; Tennessee. (digital.library.unt.edu/ark:/67531/metadc706915/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.