Моделирование поведения топлива тепловыделяющих элементов реакторов ВВЭР и РБМК с использованием компьютерной технологии MARC

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Моделирование поведения топлива тепловыделяющих элементов…
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Modeling of VVER and RBMK fuel elements behavior
using computer technology MARC
© G.V. Kulakov1 , Y.V. Konovalov2, A.A. Kosaurov1 ,
B.A Kashirin1 , A.V. Kuznetsov1
1 JSC ”A.A. Bochvar High-Technology Research Institute
of Inorganic Materials” (JSC “VNIINM”), Moscow, 123060, Russia
2 Bauman Moscow State Technical University, Moscow, 105005,Russia
The article presents finite element analysis models to describe thermo-mechanical behav-
iour of light water reactors fuel elements. Modelling of fuel elements behaviour was car-
ried out using MSC.MARC&MENTAT Software. To compute stress and strain distribu-
tions in cladding, finite element analysis modelling was performed in the elastic-viscous-
plastic statement with due account for fuel swelling under irradiation and contact inter-
action between construction elements. The paper shows examples and results of simula-
tion of container (pellet) type fuel elements for VVER and RBMK reactor.
Keywords: nuclear reactor, fuel element, stress and strain state, finite element analysis.
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Kulakov G.V., Cand. Sci. (Eng.), chief of department, JSC “VNIINM”. Research interests:
research in the field of nuclear energy.