ALE formalism; finite element method; steady state
Abstract :
[en] In this paper, the arbitrary Lagrangian Eulerian formalism is used to compute the steady state of a 2D metal cutting operation and a 3D U-shaped cold roll forming process. Compared to the Lagrangian case, this method allows the use of a refined mesh near the tools, leading to an accurate representation of the chip formation (metal cutting) and the bending of the sheet (roll forming) with a limited computational time. The main problem of this kind of simulation is the rezoning of the nodes on the free surfaces of the sheet. A modified iterative isoparametric smoother is used to manage this geometrically complex and CPU expensive task. c 2007 American Institute of Physics.
Disciplines :
Mechanical engineering
Author, co-author :
Boman, Romain ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Papeleux, Luc ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Ponthot, Jean-Philippe ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Language :
English
Title :
A General Arbitrary Lagrangian Eulerian Formulation for the Numerical Simulation of 3D forming Processes
Publication date :
17 May 2007
Event name :
NUMIFORM'07 The 9th International Conference on Numerical Methods in Industrial Forming Processes
Event place :
Porto, Portugal
Event date :
17 May 2007
Audience :
International
Journal title :
AIP Conference Proceedings
ISSN :
0094-243X
eISSN :
1551-7616
Publisher :
American Institute of Physics, United States
Special issue title :
Materials Processing and Design; Modeling, Simulation and Applications
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