Single point incremental forming; finite element modeling; force prediction; LIMARC
Abstract :
[en] The aim of this article is to study the accuracy of finite element simulations in predicting the tool force occurring during the single point incremental forming (SPIF) process. The forming of two cones in soft aluminum was studied with two finite element (FE) codes and several constitutive laws (an elastic–plastic law coupled with various hardening models). The parameters of these laws were identified using several combinations of a tensile test, shear tests, and an inverse modeling approach taking into account a test similar to the incremental forming process. Comparisons between measured and predicted force values are performed. This article shows that three factors have an influence on force prediction: the type of finite element, the constitutive law and the identification procedure for the material parameters. In addition, it confirms that a detailed description of the behavior occurring across the thickness of the metal sheet is crucial for an accurate force prediction by FE simulations, even though a simple analytical formula could provide an otherwise acceptable answer.
Disciplines :
Materials science & engineering
Author, co-author :
Henrard, Christophe; Samtech S.A.
Bouffioux, Chantal ; Université de Liège - ULiège > Département Argenco : Secteur MS2F > Département Argenco : Secteur MS2F
Eyckens, P.; KULeuven > MTM
Sol, H.; Vrije Universiteit Brussel - VUB > MEMC
Duflou, J. R.; KULeuven > PMA
Van Houtte, P.; KULeuven > MTM
Van Bael, A.; KULeuven > MTM
Duchene, Laurent ; Université de Liège - ULiège > Département Argenco : Secteur MS2F > Département Argenco : Secteur MS2F
Habraken, Anne ; Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Language :
English
Title :
Forming forces in single point incremental forming: prediction by finite element simulations, validation and sensitivity
Publication date :
2011
Journal title :
Computational Mechanics
ISSN :
0178-7675
eISSN :
1432-0924
Publisher :
Springer Science & Business Media B.V., New York, United States - New York
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