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Automated adaptive forming simulations

Wan, Jie, Suleyman Kocak and Mark S. Shephard

Proceedings, 12th International Meshing Roundtable, Sandia National Laboratories, pp.323-334, Sept. 2003


12th International Meshing Roundtable
September 14-17, 2003
Santa Fe, New Mexico, U.S.A.

Scientific Computation Research Center,
Rensselaer Polytechnic Institute,
Troy, NY, U.S.A.

In this study, an automated adaptive mesh control scheme, based on local mesh modifications, is developed for the finite element simulations of 3D metal forming processes. Error indicators are used to control the mesh discretization errors, and a consecutive h-adaptive procedure is conducted. The mesh size field used in the h-adaptive procedure is processed to control the geometric approximation errors on the evolving workpiece boundary mesh. During the simulations the workpiece mesh is adaptively enriched whenever the mesh is no longer acceptable. Industrial problems are investigated to demonstrate the capabilities of the developed scheme.

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