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Published in: International Journal of Material Forming 2/2012

01-06-2012 | Thematic Issue: AMPT

3D contact modelling of large plastic deformation in powder forming processes

Authors: Amir R. Khoei, S. O. R. Biabanaki, S. M. Taheri-Mousavi, A. R. Vafa, S. M. Parvaneh

Published in: International Journal of Material Forming | Issue 2/2012

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Abstract

In this paper, the three-dimensional large frictional contact deformation of powder forming process is modeled using a node-to-surface contact algorithm based on the penalty and augmented-Lagrange approaches. The technique is applied by imposing the normal and tangential contact constraints and modifying the contact properties of frictional slip. The Coulomb friction law is employed to simulate the friction between the rigid punch and the work piece. It is shown that the augmented-Lagrange technique significantly improves imposing of the constraints on contact surfaces. In order to predict the non-uniform relative density and stress distributions during the large deformation of powder die-pressing, the nonlinear contact friction algorithm is employed within the framework of large finite element deformation, in which a double-surface cap plasticity model is used for highly nonlinear behavior of powder. Finally, the numerical schemes are examined for accuracy and efficiency in modeling of a set of powder components.

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Metadata
Title
3D contact modelling of large plastic deformation in powder forming processes
Authors
Amir R. Khoei
S. O. R. Biabanaki
S. M. Taheri-Mousavi
A. R. Vafa
S. M. Parvaneh
Publication date
01-06-2012
Publisher
Springer-Verlag
Published in
International Journal of Material Forming / Issue 2/2012
Print ISSN: 1960-6206
Electronic ISSN: 1960-6214
DOI
https://doi.org/10.1007/s12289-011-1026-y

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