An automatic remeshing scheme has been developed to enable finite element simulation of even complicated forming processes. It has been demonstrated that for many practical applications the incorporation of this technique in the existing computer codes is indispensable not only for more accurate sol
Automatic remeshing in finite element simulation of metal forming processes by guide grid method
โ Scribed by J.S. Park; S.M. Hwang
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 707 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0924-0136
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โฆ Synopsis
An approach to full automation of the remeshing procedure in the finite element simulation of a non-steady metal forming process is presented. The approach is based on a new automatic mesh generation scheme, in which a two-dimensional mesh is generated for an arbitrary domain with the aid of a prespecified mesh referred to as the guide grid. Evaluation of the effect of remeshing on the solution accuracy is made. Backward extrusion with a sharp-cornered punch is simulated, to verify the effectiveness of the proposed approach. The approach is further applied to simulating a rib-web forging process.
๐ SIMILAR VOLUMES
The traditional Lagrangian and Eulerian formulations in finite elements posses some inherent difficulties when used in simulation of metal-forming processes or general finite strain problems. A more general method of formulation, the Arbitrary Lagrangian-Eulerian (ALE), is developed to overcome such