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【正文】 vious manufacturing simulation to metal removal simulation using PRESTATE. ? Accurate: From int. point to int. point. of the same FE mesh. ? User friendly. Initial Residual Stress Input PreState: Initial Residual Stress Input Methods available in (cont.) ? Text data file ? Transfer of measurement data (Xray diffraction, etc.) to model via text data. Residual Stress data in the workpiece are automatically extrapolated to the underlying mesh. Initial Residual Stress Input Text data file Initial Residual Stress Input Methods available in (cont.) ? Tabular format FE Solution ? Treatment of Intersected Finite Element Entities ? Fully Intersected Finite Elements ? Automatically deactivated and Stresses released. ? Partially Intersected Finite Elements ? Subdivided using Local Adaptive Remeshing. ? User sets levels of subdivision to be used. ? Fully intersected child elements are deactivated. ? FE Solution with Reduced Number of Elements FE Solution ? Adaptive Remeshing for Machining FE Solution ? Machining Load case definition Adaptive Meshing Example Hole Drilling ?Initial FEM model: ?408 brick elements, 668 nodes ?Final FEM model:
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