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An augmented Lagrangian treatment of the metal forming process

✍ Scribed by O.A. Baba; B. Radi; J.-C. Gelin

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
635 KB
Volume
32
Category
Article
ISSN
0895-7177

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✦ Synopsis

In this paper, we are interested in the contact problem between a thin shell (3D) and a rigid punch. The context of this work is the isotropic elastoplsstic material with large strains in the quasi-static state with the Lagrangian formulation updated for each loading increment. The augmented Lagrangian approach has had considerable success in the modelling of contact with friction in the last decade. An extension to our context of the approach proposed by Simo and Laursen [l] is proposed here, with a new way of writing the Coulomb Friction Law.

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