Numerical Study of the Dynamic Strength of RBMK-1000 Stack with Fuel Channel Rupture
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The strength of the stack in a RBMK-1000 reactor facility with a rupture of a fuel channel is studied. Local models of unirradiated and irradiated stack, comprising an assembly consisting of 81 columns, and a complete model of the original stack are developed to calculate the parameters of RBMK-1000 core degradation. Numerical studies of the nonstationary stress-strain state of the initial unirradiated stack and the stack degraded by irradiation one year after the repair-restorative work, which confirm the core strength to be adequate, are presented.
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- 1.O. Novosel’tsev et al., “Comprehensive analysis of mechanical and thermohydraulic processes in the graphite stack of channel reactors during emergency rupture of a fuel channel,” At. Energ., 94, No. 2, 26–28 (2003).Google Scholar
- 2.K. Vasidzu, Variational Methods in the Theory of Elasticity and Plasticity [Russian translation], Mir, Moscow (1987).Google Scholar
- 3.V. F. Spiridonov, K. V. Tsiberev, D. Yu. D’yanov, et al., “LOGOS software package: Functional possibilities for solving strength problems,” in: Supercalculations and Mathematical Modeling: 13th Int. Seminar, Sarov (2012), pp. 541–549.Google Scholar
- 4.A. A. Ryabov, V. I. Romanov, S. S. Kukanov, et al., “Computer analysis of the dynamic strength of the initial and reconstored stack of RBMK-1000 reactors installation during seismic action,” in: Trudy RFYaTs – VNIIEF (2017), Vol. 22, Pt. 1, pp. 160–169.Google Scholar
- 5.PNAE G-7-002–86, Norms for the Calculation of the Strength of Equipment and Piping in Nuclear Power Installations, Energoatomizdat, Moscow (1989).Google Scholar