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| Titre: | Numerical method coupling finite elements and boundary elements to model forming process tools |
| Auteur(s): | Bigot, Dominique
Roelandt, Jean-Marc
Kebir, Hocine |
| Mots-clés: | Lifespan of tool
Rupture criterion
Friction models
Coupling finite elements and boundary elements
Non-linearity
Forming process
Penalty method
Damage models |
| Date de publication: | 2009 |
| Collection/Numéro: | Journal of Materials Processing Technology/ Vol.209, N°7 (2009);pp. 3226-3235 |
| Résumé: | Nowadays, the simulation of forming process is rather well integrated in the industrial numerical codes. However, in order to take into account the possible modifications of the tool during rates of working, a dedicated numerical software is currently developed within the laboratory Roberval, this software allows to simulate forming process. The tool is discretized by boundary elements and the product, which is subjected to non-linearities, is discretized by finite elements. For the product, an isotrope law of behaviour is integrated, and the damage is taken into account by the uncoupled Rice and Tracey model. This paper deals with a contact algorithm, coupling boundary elements and finite elements, programmed in the software KSP. For that, friction is described by the Coulomb law and the resolution of contact problems is done by the penalty method. An adaptive step has been developed in order to increase the robustness of the contact algorithm |
| URI/URL: | http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/490 |
| ISSN: | 0924-0136 |
| Collection(s) : | Publications Internationales
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