SIMULATION OF NUCLEAR FUEL EXPERIMENTS USING DIONISIO FEM

CAZADO, MAURICIO E.; ALEJANDRO SOBA; ALICIA DENIS

Congreso; MECON 2021; 2021

DIONISIO FEM is a new module incorporated into the DIONISIO code, developed by theCodes and Models Section of the Nuclear Fuel Cycle Management, CNEA. This module uses the coreof the fuel code, including the mesh generator, the materials library, the solvers of equations systemsand finite element libraries, to simulate the pellets behavior subjected to different thermal conditions.Based on this framework, the FEM module solves a thermomechanical problem, in the requiredgeometry, depending on the material and the physical and / or chemical models to be evaluated. Theresults obtained for the dimensional evolution suffered by a fuel pellet when it is subjected to a purelythermal history are presented. In general, simulations carried out with DIONISIO FEM achieved goodagreement with the experimental data.Mecánica Computacional Vol XXXVIII, págs. 339-347 (artículo completo)H.G. Castro, J.L. Mroginski, R.R. Paz, M.A. Storti (Eds.)Resistencia, 1-5 Noviembre 2021Copyright