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  4. Reducing computational cost and allowing automatic remeshing in FEM models of metal forming coupled with polycrystal plasticity
 
conference paper

Reducing computational cost and allowing automatic remeshing in FEM models of metal forming coupled with polycrystal plasticity

Logé, R.E.  
•
Béringhier, M.
•
Chastel, Y.B.
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2007
AIP Conference Proceedings
MATERIALS PROCESSING AND DESIGN; Modeling, Simulation and Applications - NUMIFORM '07: 9th International Conference on Numerical Methods in Industrial Forming Processes

The paper proposes an original use of the Lagrangian particles concept for finite element computation of microstructure evolution in metal forming. The method amounts to distributing incomplete representations of the microstructure among the integration points of the mesh while a complete microstructure is associated with each Lagrangian particle. This decreases the computation time and enables the transport of microstructural variables when remeshing. While the method is presented for any kind of discretized microstructure, it is applied here to the prediction of mechanical anisotropy induced by crystallographic texture. In this specific case, the numerical predictions are validated against experiment by considering compression of a textured aluminium alloy (AA7175). The model accuracy is assessed with respect to mechanical anisotropy but texture evolution is also considered. © 2007 American Institute of Physics.

  • Details
  • Metrics
Type
conference paper
DOI
10.1063/1.2740842
Author(s)
Logé, R.E.  
Béringhier, M.
Chastel, Y.B.
Delannay, L.
Date Issued

2007

Published in
AIP Conference Proceedings
Volume

908

Start page

387

End page

392

Subjects

Anisotropy

•

Computation time

•

Crystallographic texture

•

Finite element

•

Lagrangian particles

•

Microstructure

•

Remeshing

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LMTM  
Event nameEvent date
MATERIALS PROCESSING AND DESIGN; Modeling, Simulation and Applications - NUMIFORM '07: 9th International Conference on Numerical Methods in Industrial Forming Processes

2007

Available on Infoscience
November 14, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/108791
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