Article dans une revue avec comité de lecture

An Efficient Axi-symmetric Element Based on Inverse Approach for Cold Forging Modeling
Engineering Letters, Vol. 18(4), pp. 376-383, 2010.

par   Ali HALOUANI , Yu Ming LI , Boussad ABBES , Ying Qiao GUO

Résumé :

This paper presents an efficient axi-symmetric
finite element based on the “Inverse Approach” for the
numerical modeling of cold forging process. In contrast to the
classical incremental methods, the Inverse Approach exploits
the known shape of the final part and executes the calculation
from the final part to the initial billet. The assumptions of the
proportional loading and the simplified tool actions make the
I.A. calculation very fast. The formulation of an axi-symmetric
element based on the I.A. is presented. The metal’s
incompressibility is ensured by the penalty method. The
comparison with the simulation by Abaqus® shows the
efficiency and limitations of the I.A. This kind of modeling will
be a good tool for the preliminary preform design.

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