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physics.comp-ph2026
Accelerating Multi-scale Simulations of Nuclear Components via PCYS Interpolation Tables
Fabrizio Aguzzi, Martin S. Armoa, Cesar I. Pairetti +2
Zirconium alloy core components in nuclear reactors, such as spacer grids and fuel cladding, undergo anisotropic dimensional changes driven by coupled irradiation creep and growth.…
physics.comp-ph2025
Multiphysics Finite Element Modeling of Irradiation and Thermal Behavior Demonstrated on a Fuel-Assembly Problem
Fabrizio Aguzzi, MartÃn Armoa, Santiago M. Rabazzi +2
This work presents a modeling framework to represent the thermomechanical behavior of complex materials based on micromechanical dynamics. The framework is applied to nuclear fuel…
physics.comp-ph2025
An open-source finite element toolbox for anisotropic creep and irradiation growth: Application to tube and spacer grid assembly
Fabrizio E. Aguzzi, Santiago M. Rabazzi, MartÃn S. Armoa +2
This work presents an open-source interface that couples the viscoplastic self-consistent (VPSC) model capable of simulating anisotropic creep and irradiation growth in polycrystal…