Reference : Evaluation of the Enhanced Assumed Strain and Assumed Natural Strain in the SSH3D and RE...
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/131068
Evaluation of the Enhanced Assumed Strain and Assumed Natural Strain in the SSH3D and RESS3 Solid Shell Elements for Single Point Incremental Forming Simulation
English
Guzmán Inostroza, Carlos Felipe mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > Département Argenco : Secteur MS2F >]
Ben Bettaieb, Amine [Université de Liège - ULg > Département Argenco : Secteur MS2F > Département Argenco : Secteur MS2F >]
Velosa de Sena, José Ilidio [University of Aveiro, Portugal > Department of Mechanical Engineering > > >]
Alves de Sousa, Ricardo [University of Aveiro, Portugal > Department of Mechanical Engineering > > >]
Habraken, Anne mailto [Université de Liège - ULg > Département ArGEnCo > Département ArGEnCo >]
Duchene, Laurent mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > Analyse multi-échelles des matériaux et struct. du gén. civ. >]
Feb-2012
Key Engineering Materials [=KEM]
Trans Tech Publications
504-506
913-918
Yes (verified by ORBi)
International
1013-9826
Aedermannsdorf
Switzerland
[en] Solid Shell Finite Element ; Enhanced Assumed Strain ; Assumed Natural Strain ; Single Point Incremental Forming ; LIMARC
[en] Single Point Incremental Forming (SPIF) is a recent sheet forming process which can give
a symmetrical or asymmetrical shape by using a small tool. Without the need of dies, the SPIF is capable to deal with rapid prototyping and small batch productions at low cost. Extensive research from both experimental and numerical sides has been carried out in the last years. Recent developments in the finite element simulations for sheet metal forming have allowed new modeling techniques, such as the Solid Shell elements, which combine the main features of shell hypothesis with a solid-brick element. In this article, two recently developed elements -SSH3D element [1, 2] and RESS3 element [3]- implemented in Lagamine (finite element code developed by the ArGEnCo department of the University of Liège) are explained and evaluated using the SPIF line test. To avoid locking problems, the well-known Enhanced Assumed Strain (EAS) and Assumed Natural Strain (ANS) techniques are used. The influence of the different EAS and ANS parameters are analysed comparing the predicted tool forces and the shape of a transversal cut, at the end of the process. The results show a strong influence of the EAS in the forces prediction, proving that a correct choice is fundamental for an accurate simulation of the SPIF using Solid Shell elements.
Interuniversity Attraction Poles Program (Belgian State) Belgian Sci- ence Policy (Contract P6/24) ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/131068
10.4028/www.scientific.net/KEM.504-506.913

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