Determination of K-factors for arbitrarily shaped flaws at pressure vessel nozzle corners

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Photoelastic and finite element studies are being conducted to determine Mode I stress intensity factor distributions along arbitrarily shaped flaw fronts at pressure vessel nozzle corners. Comparisons of results from NOZ-FLAW, BIGIF, and the photoelastic studies showed that (1) good agreement was obtained between NOZ-FLAW and the photoelastically determined K/sub 1/'s for the deep flaw in an ITV model, (2) good agreement was obtained between NOZ-FLAW BIGIF for shallow and moderately deep flaws in a BWR model, and (3) less satisfactory agreement was obtained between NOZ- FLAW and the photoelastic results for the BWR models, particularly for moderately deep to ... continued below

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Pages: 20

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Bryson, J.W. January 1, 1979.

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Description

Photoelastic and finite element studies are being conducted to determine Mode I stress intensity factor distributions along arbitrarily shaped flaw fronts at pressure vessel nozzle corners. Comparisons of results from NOZ-FLAW, BIGIF, and the photoelastic studies showed that (1) good agreement was obtained between NOZ-FLAW and the photoelastically determined K/sub 1/'s for the deep flaw in an ITV model, (2) good agreement was obtained between NOZ-FLAW BIGIF for shallow and moderately deep flaws in a BWR model, and (3) less satisfactory agreement was obtained between NOZ- FLAW and the photoelastic results for the BWR models, particularly for moderately deep to deep flaws. Attempts are presently being made at understanding and explaining the discrepancies between the two.

Physical Description

Pages: 20

Notes

NTIS, PC A02/MF A01.

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  • 7. water reactor safety research information meeting, Gaithersburg, MD, USA, 5 Nov 1979

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  • Report No.: CONF-791118-11
  • Grant Number: W-7405-ENG-26
  • Office of Scientific & Technical Information Report Number: 5400193
  • Archival Resource Key: ark:/67531/metadc1063637

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1979

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • April 19, 2018, 10:12 a.m.

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Bryson, J.W. Determination of K-factors for arbitrarily shaped flaws at pressure vessel nozzle corners, article, January 1, 1979; Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1063637/: accessed May 24, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.