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

Conference · Sun Jan 01 04:00:00 EST 1978

OSTI ID:6323280

Dodge, W. G.; Fanning, D. N.

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.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6323280
• Report Number(s): CONF-781144-17
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210300* -- Power Reactors
Nonbreeding
Graphite Moderated
BUILDING MATERIALS
CLOSURES
CONCRETES
CONTAINERS
GAS COOLED REACTORS
GRAPHITE MODERATED REACTORS
HTGR TYPE REACTORS
MATERIALS
MATHEMATICAL MODELS
PRESSURE VESSELS
PRESTRESSED CONCRETE
REACTORS
STRESS ANALYSIS