27 COMSOL MULTIPHYSICS OCTOBER 2018 ILLUMINATING COMPLEX MATERIAL BEHAVIOR WITH MULTIPHYSICS SIMULATION At Canadian Nuclear Laboratories, multiphysics simulation is used to shed light on the complex material behavior of nuclear fuel. WHAT HAPPENS WHEN ENGINEERS explore the possibility of replacing tried- and-true but cumbersome in-house code with multiphysics simulation software? Nuclear engineers began to ask this question at the Computational Techniques Branch of Canadian Nuclear Laboratories (CNL), Canada’s premier nuclear science and technology organization. In the field of nuclear engineering, where research focuses on improving the safety, efficiency, and economics of reactors, mature and robust in-house computer codes are frequently used for modeling studies. Unfortu

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