Analytical methods for determining the inelastic response of prestressed concrete reactor vessels and vessel closures. [HTGR]

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Numerical prediction of the limiting capacity of thick prestressed concrete structures such as multicavity PCRVs and PCRV closure plugs requires a constitutive model that is capable of accurately predicting the nonlinear response of concrete when subjected to states of high triaxial compressive stress. Four nonlinear concrete constitutive models have veen investigated at ORNL: the models contained in the 1976 and 1977 versions of the ADINA finite element code and the two endochronic models proposed by Z.P. Bazant. The paper presents comparisons between two of these constitutive models and published stress-strain data for various loading conditions and also comparisons of results ... continued below

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Pages: 14

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Dodge, W.G. & Fanning, D.N. January 1, 1978.

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Description

Numerical prediction of the limiting capacity of thick prestressed concrete structures such as multicavity PCRVs and PCRV closure plugs requires a constitutive model that is capable of accurately predicting the nonlinear response of concrete when subjected to states of high triaxial compressive stress. Four nonlinear concrete constitutive models have veen investigated at ORNL: the models contained in the 1976 and 1977 versions of the ADINA finite element code and the two endochronic models proposed by Z.P. Bazant. The paper presents comparisons between two of these constitutive models and published stress-strain data for various loading conditions and also comparisons of results obtained from experimental tests and finite element analyses of some typical concrete structures.

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Pages: 14

Notes

Dep. NTIS, PC A02/MF A01.

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  • 2. US-Japan seminar on HTGR safety technology, Fuji, Japan, 24 Nov 1978

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  • Report No.: CONF-781144-17
  • Grant Number: W-7405-ENG-26
  • Office of Scientific & Technical Information Report Number: 6323280
  • Archival Resource Key: ark:/67531/metadc1210560

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  • January 1, 1978

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

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  • Aug. 2, 2018, 2:39 p.m.

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Dodge, W.G. & Fanning, D.N. Analytical methods for determining the inelastic response of prestressed concrete reactor vessels and vessel closures. [HTGR], article, January 1, 1978; United States. (digital.library.unt.edu/ark:/67531/metadc1210560/: accessed January 18, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.