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Simulation of Metal Forming Processes with a 3D Adaptive Remeshing Procedure

Abstract : In this paper, a fully adaptive 3D numerical methodology based on a tetrahedral element was proposed in order to rove the finite element simulation of any metal forming process. This automatic methodology was implemented in a computational platform which integrates a finite element solver, 3D mesh generation and a field transfer algorithm. The proposed remeshing method was developed in order to solve problems associated with the severe distortion of elements subject to large deformations, to concentrate the elements where the error is large and to coarsen the mesh where the error is small. This leads to a significant reduction in the computation times while maintaining simulation accuracy . In addition, in order to enhance the contact conditions, this method has been coupled with a specific operator to maintain the initial contact between the workpiece nodes and the rigid tool after each remeshing step. In this paper special attention is paid to the data transfer methods and the necessary adaptive remeshing steps are given. Finally, a numerical example is detailed to demonstrate the efficiency of the approach and to compare the results for the different field transfer strategies
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Submitted on : Monday, May 9, 2016 - 5:21:09 PM
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Bessam Zeramdini, Camille Robert, Guénaël Germain, Thomas Pottier. Simulation of Metal Forming Processes with a 3D Adaptive Remeshing Procedure. ESAFORM 2016 - 19th International ESAFORM Conference on Material Forming, Apr 2016, Nantes, France. pp.6, ⟨10.1063/1.4963636⟩. ⟨hal-01313283⟩



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