Adaptive remeshing for sheet metal forming in large plastic deformations with damage
Source abstract
Abstract
This paper presents an adaptive remeshing scheme to solve problems, where large plastic deformations with ductile damage are possible, in metal forming processes. During simulations of metal forming processes, severe mesh distortion occurs and it is then necessary to remesh the part to carry out the finite element analysis. The proposed remeshing method is based on refinement and coarsening techniques and avoids entirely remeshing the piece. Its advantages are the simplicity and the rapidity. This paper presents the necessary steps to remesh the damage structure: refinement of the elements in the boundary of the domain, adaptive refinement and coarsening of elements according to physical and geometrical criteria. In addition, the macroscopic crack propagation is modelled by removing the fully damaged elements. Numerical examples show the efficiency of the proposed method.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metal Forming Simulation Techniques · Advanced Numerical Methods in Computational Mathematics · Metallurgy and Material Forming
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (6)
Show source-provided references
1. J. Lemaitre, A course on damage Mechanics, Springer Verlag, (1992).10.1007/978-3-662-02761-5 ↗
2. P. Coorevits, J.P. Dumeau and J.P. Pelle, ‘Analyses elements finis adaptatives pour les structures tridimensionnelles en élasticité’, In: Revue européenne des elements finis 5 (2001), 3, 341–373.
3. H. Borouchaki, D. Chapelle, P.L. George, P. Laug and J.P. Frey, ‘Estimateurs d’erreur géométriques et adaptation de maillage’, in: Maillage et adaptation, traité Mécanique et Ingénierie des Matériaux, Méthodes numériques, Hermès, (2001), 279–310.
4. A. Cherouat, K. Saanouni, H. Borouchaki and P. Laug, ‘Virtual metal forming with damage occurrence using adaptive remeshing’, In: International journal of forming processes, (2005), vol 8, n°2–3, 311–289.
5. L. Giraud-Moreau, H. Borouchaki and A. Cherouat, ‘Adaptive remeshing method based on refinement and coarsening techniques’, In: Proc. 10th ESAFORM Conference on Material Forming,, Espagne, (2007).
6. L. Giraud-Moreau, H. Borouchaki and A. Cherouat, ‘Sheet metal forming using adaptive remeshing’, In: Proc. of NUMIFORM’04, Etats Unis, (2004).