Creep of graphite blocks under irradiation in RBMK reactors

Computer simulation of the stress–strain state of graphite blocks in prolonged thermal and neutron irradiation is considered, in a three-dimensional formulation. Allowance is made for the anisotropy of the graphite’s thermophysical properties, as well as crack initiation and growth. Creep of the mat...

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Bibliographic Details
Published in:Russian engineering research 2017-08, Vol.37 (8), p.682-685
Main Authors: Alekseev, A. T., Sergeeva, L. V.
Format: Article
Language:English
Subjects:
Computer simulation
Crack initiation
Crack propagation
Creep (materials)
Engineering
Engineering Design
Graphite
Neutron irradiation
Plastic deformation
RBMK
Thermophysical properties
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Description
Summary:Computer simulation of the stress–strain state of graphite blocks in prolonged thermal and neutron irradiation is considered, in a three-dimensional formulation. Allowance is made for the anisotropy of the graphite’s thermophysical properties, as well as crack initiation and growth. Creep of the material is taken into account, in the absence of plastic deformation, and its influence on the properties of the graphite blocks is assessed.
ISSN:1068-798X
1934-8088
DOI:10.3103/S1068798X17080056