3D simulation of glass forming process
| Autor: | Patrick Saillard, Jean-Michel Bergheau, T. Lornage, Eric Feulvarch, Nicolas Moulin |
|---|---|
| Přispěvatelé: | Laboratoire de Tribologie et Dynamique des Systèmes (LTDS), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Ecole Nationale d'Ingénieurs de Saint Etienne-Centre National de la Recherche Scientifique (CNRS), ESI Group (ESI Group), ESI Group, European Technical Center, BSN Glasspack |
| Rok vydání: | 2005 |
| Předmět: |
Finite element method
Materials science Hydrostatic pressure Mechanical contact 02 engineering and technology 01 natural sciences Industrial and Manufacturing Engineering [SPI.MAT]Engineering Sciences [physics]/Materials Viscosity 0203 mechanical engineering 0103 physical sciences Convergence (routing) Point (geometry) 010306 general physics Glass forming Degrees of freedom Metals and Alloys Process (computing) Mechanics Mixed finite element method Computer Science Applications 020303 mechanical engineering & transports Classical mechanics Modeling and Simulation Ceramics and Composites |
| Zdroj: | Journal of Materials Processing Technology Journal of Materials Processing Technology, Elsevier, 2005, 164-165, pp.1197-1203. ⟨10.1016/j.jmatprotec.2005.02.135⟩ |
| ISSN: | 0924-0136 |
| DOI: | 10.1016/j.jmatprotec.2005.02.135 |
| Popis: | Publié suite au congrès : 8th International Conference on Advances in Materials and Processing Technologies/13th International Conference on Achievements in Mechanical and Materials Engineering, Gliwice Wisla, POLAND, MAY 16-19, 2005; International audience; The simulation of glass forming is a complex thermo-mechanical problem. For high temperatures, the mechanical glass behaviour is assumed to be as a viscous incompressible material. Its viscosity is strongly temperature dependent and the process involves large displacements and large strains. Therefore, the finite element modelling of such a process needs to take account of large geometrical transformations. From the numerical point of view, this problem can be studied by means of a solid approach where the degrees of freedom are displacements. This modelling is highly non-linear. Moreover, the numerical convergence can be affected on account of the mechanical contact between the mould and the glass. The aim of this paper is to propose a linear finite element formulation for 3D glass forming where the degrees of freedom are velocity and hydrostatic pressure. The mechanical contact is taken into account by means of an explicit algorithm related to the time integration scheme. The thermal coupling is not considered. The results are discussed and compared to a non-linear formulation where the degrees of freedom are displacements. |
| Databáze: | OpenAIRE |
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