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Explore two advanced computational applications developed at the French Atomic Commission's Nuclear Fuel Department in this conference presentation from the MFEM Workshop 2025. Discover MFEM/MGIS, a general-purpose quasistatic thermomechanical solver that couples the Modular Finite Element Methods (MFEM) library with MFront, a code generation tool for handling complex mechanical behaviors, including examples of crack propagation simulations in brittle media using micromorphic approaches and microstructural-scale computations from the Opera-HPC European project. Learn about SLOTH, an open-source multiphase-field, multicomponent framework designed for studying nuclear fuel behavior across multiple scales, from normal operating conditions to severe accident scenarios, utilizing Cahn-Hilliard and Allen-Cahn phase-field models to perform multiphysics simulations encompassing phase-field dynamics, thermal diffusion, multicomponent diffusion, and CALPHAD thermodynamic calculations. Gain insights into SLOTH's code architecture, the main physical systems it models, recent performance developments, and multiphysics coupling capabilities as presented by Thomas Helfer and Clément Introïni at this specialized workshop for MFEM users and developers.
