Reference : Combined implicit/explicit time-integration algorithms for the numerical simulation of s...
Scientific journals : Article
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/2268/230
Combined implicit/explicit time-integration algorithms for the numerical simulation of sheet metal forming
English
Noels, Ludovic mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Milieux continus et thermomécanique >]
Stainier, Laurent [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Milieux continus et thermomécanique >]
Ponthot, Jean-Philippe mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire >]
2004
Journal of Computational & Applied Mathematics
Elsevier Science Bv
168
1-2, Sp. Iss. SI
Selected papers from the 2nd International Conference on Advanced COmputational Mechanics (ACOMEN 2002), Liege University, Belgium, 27-31 May 2002. Guest Editors: H. De Schepper, M. Hogge, R. Van Keer
331-339
Yes (verified by ORBi)
International
0377-0427
Amsterdam
[en] implicit ; explicit ; combined method ; dynamics ; nonlinearitics ; metal forming
[en] In order to simulate stamping processes, an explicit method, which is conditionally stable, is generally thought to be the most adapted. Such an algorithm presents the advantage of being noniterative while, the contact configuration evolves rapidly, and the conditional stability is not a disadvantage since time steps must be small enough anyway for an accurate computation. But during the springback simulation, an implicit method, which is iterative, presents the advantage of unconditional stability. The optimal solution is then to have both implicit and explicit methods readily available in the same code and to be able to switch automatically from one to the other. Criteria that decide to switch from a method to another, depending on the current dynamic, have been developed. Implicit restarting conditions are also proposed that annihilate numerical oscillations resulting from an explicit calculation. (C) 2003 Elsevier B.V. All rights reserved.
Researchers ; Professionals
http://hdl.handle.net/2268/230
10.1016/j.cam.2003.12.004

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
2004_JCAM_Combined.pdf(c) Elsevier 2004Author postprint787.86 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.