Aluminium sheet forming simulations: influence of the yield surface

A.H. van den Boogaard; P.J. Bolt; R.J. Werkhoven; M.H.F.M. van Hout

Aluminium sheet forming simulations: influence of the yield surface

A.H. van den Boogaard
, P.J. Bolt
, R.J. Werkhoven
, M.H.F.M. van Hout

Faculty of Engineering Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

86 Downloads (Pure)

Abstract

The accuracy of simulations of the plastic deformation of sheet metal depend to a large extend on the description of the yield surface, the hardening and the friction. In this paper simulations of deep drawing of an AlMg alloy with a shell model are presented. The yield surface is described by a Von Mises, a Hill ’48 and a Vegter yield function. The parameters for the model are based on biaxial experiments. It is concluded that the shape of the yield locus has a minor influence on the prediction of the punch force–displacement diagram and a large influence on the prediction of the thickness strains. The Vegter model performs much better than the Hill ’48 model, based on the same R-values.

Original language	English
Title of host publication	The 5th International Conference on Material Forming, 14-17 April 2002, Kraków, Poland
Editors	Maciej Pietrzyk, Zbigniew Mitura, Jacek Kaczmar
Publisher	Publishing House AKAPIT
Pages	511-514
Number of pages	4
ISBN (Print)	83-7108-098-0
Publication status	Published - 14 Apr 2002
Event	5th International ESAFORM Conference on Material Forming 2002 - Krakow, Poland Duration: 14 Apr 2002 → 17 Apr 2002 Conference number: 5

Conference

Conference	5th International ESAFORM Conference on Material Forming 2002
Abbreviated title	ESAFORM
Country/Territory	Poland
City	Krakow
Period	14/04/02 → 17/04/02

Keywords

Aluminium
Vegter model
Thermo-mechanical
Finite elements
Yield locus

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Boogaard_2002_esaformFinal published version, 116 KB

Cite this

@inproceedings{f9c2fc1567564d30a58a1787250fe4d6,

title = "Aluminium sheet forming simulations: influence of the yield surface",

abstract = "The accuracy of simulations of the plastic deformation of sheet metal depend to a large extend on the description of the yield surface, the hardening and the friction. In this paper simulations of deep drawing of an AlMg alloy with a shell model are presented. The yield surface is described by a Von Mises, a Hill {\textquoteright}48 and a Vegter yield function. The parameters for the model are based on biaxial experiments. It is concluded that the shape of the yield locus has a minor influence on the prediction of the punch force{\textendash}displacement diagram and a large influence on the prediction of the thickness strains. The Vegter model performs much better than the Hill {\textquoteright}48 model, based on the same R-values.",

keywords = "Aluminium, Vegter model, Thermo-mechanical, Finite elements, Yield locus",

author = "\{van den Boogaard\}, A.H. and P.J. Bolt and R.J. Werkhoven and \{van Hout\}, M.H.F.M.",

year = "2002",

month = apr,

day = "14",

language = "English",

isbn = "83-7108-098-0",

pages = "511--514",

editor = "Maciej Pietrzyk and Zbigniew Mitura and Jacek Kaczmar",

booktitle = "The 5th International Conference on Material Forming, 14-17 April 2002, Krak{\'o}w, Poland",

publisher = "Publishing House AKAPIT",

address = "Austria",

note = "5th International ESAFORM Conference on Material Forming 2002, ESAFORM ; Conference date: 14-04-2002 Through 17-04-2002",

}

van den Boogaard, AH, Bolt, PJ, Werkhoven, RJ & van Hout, MHFM 2002, Aluminium sheet forming simulations: influence of the yield surface. in M Pietrzyk, Z Mitura & J Kaczmar (eds), The 5th International Conference on Material Forming, 14-17 April 2002, Kraków, Poland. Publishing House AKAPIT, pp. 511-514, 5th International ESAFORM Conference on Material Forming 2002, Krakow, Poland, 14/04/02.

Aluminium sheet forming simulations: influence of the yield surface. / van den Boogaard, A.H.; Bolt, P.J.; Werkhoven, R.J. et al.
The 5th International Conference on Material Forming, 14-17 April 2002, Kraków, Poland. ed. / Maciej Pietrzyk; Zbigniew Mitura; Jacek Kaczmar. Publishing House AKAPIT, 2002. p. 511-514.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

TY - GEN

T1 - Aluminium sheet forming simulations

T2 - 5th International ESAFORM Conference on Material Forming 2002

AU - van den Boogaard, A.H.

AU - Bolt, P.J.

AU - Werkhoven, R.J.

AU - van Hout, M.H.F.M.

N1 - Conference code: 5

PY - 2002/4/14

Y1 - 2002/4/14

N2 - The accuracy of simulations of the plastic deformation of sheet metal depend to a large extend on the description of the yield surface, the hardening and the friction. In this paper simulations of deep drawing of an AlMg alloy with a shell model are presented. The yield surface is described by a Von Mises, a Hill ’48 and a Vegter yield function. The parameters for the model are based on biaxial experiments. It is concluded that the shape of the yield locus has a minor influence on the prediction of the punch force–displacement diagram and a large influence on the prediction of the thickness strains. The Vegter model performs much better than the Hill ’48 model, based on the same R-values.

AB - The accuracy of simulations of the plastic deformation of sheet metal depend to a large extend on the description of the yield surface, the hardening and the friction. In this paper simulations of deep drawing of an AlMg alloy with a shell model are presented. The yield surface is described by a Von Mises, a Hill ’48 and a Vegter yield function. The parameters for the model are based on biaxial experiments. It is concluded that the shape of the yield locus has a minor influence on the prediction of the punch force–displacement diagram and a large influence on the prediction of the thickness strains. The Vegter model performs much better than the Hill ’48 model, based on the same R-values.

KW - Aluminium

KW - Vegter model

KW - Thermo-mechanical

KW - Finite elements

KW - Yield locus

M3 - Conference contribution

SN - 83-7108-098-0

SP - 511

EP - 514

BT - The 5th International Conference on Material Forming, 14-17 April 2002, Kraków, Poland

A2 - Pietrzyk, Maciej

A2 - Mitura, Zbigniew

A2 - Kaczmar, Jacek

PB - Publishing House AKAPIT

Y2 - 14 April 2002 through 17 April 2002

ER -

Aluminium sheet forming simulations: influence of the yield surface

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Keywords

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