Reference : A comparison of triangle and quadrangle finite elements for large strain elastoplasti...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/2268/2903
A comparison of triangle and quadrangle finite elements for large strain elastoplastic formulations
English
KARASEVA, Olga [ > > ]
Stainier, Laurent [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS - Milieux continus et thermomécanique >]
Careglio, C. [LAPIC, Instituto Tecnologico Universitario, Universidad Nacional de Cuyo, Argentina > > > >]
Garcia-Garino, C. mailto [LAPIC, Instituto Tecnologico Universitario, Universidad Nacional de Cuyo, Argentinal > > > >]
Mirasso, A. [LAPIC, Instituto Tecnologico Universitario, Universidad Nacional de Cuyo, Argentina > > > >]
Ponthot, Jean-Philippe mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire >]
2008
Proceedings of ACOMEN’2008, Advanced Computational Methods in Engineering
M. Hogge, R. Van Keer, L. Noels, L. Stainier, J.-P. Ponthot, Editors: J.-F. Remacle, E. Dick
11
No
International
Fourth International Conference on Advanced COmputational Methods in ENgineering (ACOMEN 2008)
26-28 May 2008
Liège
Belgium
[en] comparison ; triangle and quadrangle ; finite elements ; large strain ; elastoplastic formulations
[en] The paper presents a comparative study of different elastoplastic large strain formulations used in research groups in Mendoza and Li`ege. The comparison is focused on a few academic standardized problems, in particular necking of a cylindrical bar in tension. Stress distribution at necking section, as well as load histories are analyzed for all three formulations. Two other test cases consider bending of the so-called ”Greco” beam and upsetting of a cylinder. Numerical results show that all approaches yield very similar results and thus are equally valid. Furthermore, quadratic 6-noded triangles provide a good alternative to bilinear quadrangles, even if sometimes they appear to be
more sensitive to big distorsions.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/2903

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