Paper published in a book (Scientific congresses and symposiums)
Effective Iterative Solvers for Highly Non-Linear & Large Deformation Pressure Dependent Problems
Boman, Romain; Colantonio, Laurent; Ponthot, Jean-Philippe
1998In Van Keer, R.; Verhegghe, B.; Hogge, M. et al. (Eds.) Proceedings of ACOMEN'98, Advanced Computational Methods in Engineering, part 2: Contributed papers
 

Files


Full Text
Boman-1998 - Effective iterative solvers for highly non-linear & large deformation pressure dependent problems.pdf
Author postprint (242.55 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
iterative solvers; non-deviatoric elastoviscoplastic models; compaction of powders
Abstract :
[en] In this paper, we present a stress update scheme for non-deviatoric elastoviscoplastic models, which can be considered as an extension of the radial return method for classical plasticity. We use the unconditionally stable backward Euler scheme to obtain the viscoplastic solution at each increment. To solve the large sparse non symmetric iteration matrix, we use the GMRES method. This fast iterative solver, in conjunction with an appropriate preconditioner, can save a lot a memory and CPU time when 3D problem are considered. A comparison between direct and iterative solvers will be discussed on two applications of cold compaction of powders.
Disciplines :
Mechanical engineering
Author, co-author :
Boman, Romain  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Colantonio, Laurent
Ponthot, Jean-Philippe  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Language :
English
Title :
Effective Iterative Solvers for Highly Non-Linear & Large Deformation Pressure Dependent Problems
Publication date :
September 1998
Event name :
ACOMEN'98, Advanced Computational Methods in Engineering
Event place :
Ghent, Belgium
Event date :
2-4 September 1998
Audience :
International
Main work title :
Proceedings of ACOMEN'98, Advanced Computational Methods in Engineering, part 2: Contributed papers
Editor :
Van Keer, R.
Verhegghe, B.
Hogge, M.
Noldus, E.
Publisher :
Shaker Publishing, Maastricht, Netherlands
ISBN/EAN :
90-423-0055-8
Pages :
133-140
Available on ORBi :
since 16 July 2009

Statistics


Number of views
62 (17 by ULiège)
Number of downloads
5 (5 by ULiège)

Bibliography


Similar publications



Contact ORBi