Thermomechanical Finite Element Macroscopic Model to Estimate the Impact of Grinding Model on Welding Residual Stresses
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This study investigates grinding in industries like the nuclear sector, focusing on its effects on welded components. Grinding, which is used for improving surface quality, introduces variability and potential defects due to its reliance on tools with binders and abrasive particles. The research explores how grinding influences residual stresses and component lifespan. We developed a numerical model, tested on Framatome's semi-automatic grinding bench, to understand the interaction between grinding parameters and residual stress states. Our approach, aligning with EDF’s requirements, utilizes "Code_Aster", a finite element software, to simulate grinding as thermomechanical loading. The model encompasses multiple grinding passes and is validated by tests on welded components to assess the impact of grinding-induced stresses.
