Elasto-plastic material parameter identification by inverse methods

Steven Cooreman; David Lecompte; Hugo Sol; Dimitri Debruyne; Sam Coppieters

Elasto-plastic material parameter identification by inverse methods

Steven Cooreman, David Lecompte, Hugo Sol, Dimitri Debruyne, Sam Coppieters

Structural and Blast Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Inverse methods offer a powerful tool for the determination of elasto-plastic material properties. Contrary to standard tests, these methods can deal with complex, heterogeneous stress and strain fields which have a larger information contents and hence allow the simultaneous identification of several material parameters. Moreover, the obtained material parameters should be more realistic, since these heterogeneous deformation fields are much closer to those occurring in real (metal) forming operations. In this paper an inverse method is presented for the determination of the unknown material parameters of a DC06 steel. The material behaviour is described by a Swift type hardening law and Hill's 1948 yield surface. The parameter update algorithm is a gradient based Newton-type optimization algorithm. The importance of a suitable material test and the update algorithm itself are discussed in more detail.

Original language	English
Title of host publication	Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
Pages	1199-1207
Number of pages	9
Publication status	Published - 2007
Event	SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007 - Springfield, MA, United States Duration: 3 Jun 2007 → 6 Jun 2007

Publication series

Name	Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
Volume	2

Conference

Conference	SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007
Country/Territory	United States
City	Springfield, MA
Period	3/06/07 → 6/06/07

Keywords

Elasto-plastic material properties
Heterogeneous strain fields
Hill 1948 yield surface
Inverse methods
Swift type hardening law

Cite this

Cooreman, S., Lecompte, D., Sol, H., Debruyne, D., & Coppieters, S. (2007). Elasto-plastic material parameter identification by inverse methods. In Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007 (pp. 1199-1207). (Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007; Vol. 2).

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title = "Elasto-plastic material parameter identification by inverse methods",

abstract = "Inverse methods offer a powerful tool for the determination of elasto-plastic material properties. Contrary to standard tests, these methods can deal with complex, heterogeneous stress and strain fields which have a larger information contents and hence allow the simultaneous identification of several material parameters. Moreover, the obtained material parameters should be more realistic, since these heterogeneous deformation fields are much closer to those occurring in real (metal) forming operations. In this paper an inverse method is presented for the determination of the unknown material parameters of a DC06 steel. The material behaviour is described by a Swift type hardening law and Hill's 1948 yield surface. The parameter update algorithm is a gradient based Newton-type optimization algorithm. The importance of a suitable material test and the update algorithm itself are discussed in more detail.",

keywords = "Elasto-plastic material properties, Heterogeneous strain fields, Hill 1948 yield surface, Inverse methods, Swift type hardening law",

author = "Steven Cooreman and David Lecompte and Hugo Sol and Dimitri Debruyne and Sam Coppieters",

year = "2007",

language = "English",

isbn = "1604232226",

series = "Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007",

pages = "1199--1207",

booktitle = "Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007",

note = "SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007 ; Conference date: 03-06-2007 Through 06-06-2007",

}

Cooreman, S, Lecompte, D, Sol, H, Debruyne, D & Coppieters, S 2007, Elasto-plastic material parameter identification by inverse methods. in Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007. Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007, vol. 2, pp. 1199-1207, SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007, Springfield, MA, United States, 3/06/07.

Elasto-plastic material parameter identification by inverse methods. / Cooreman, Steven; Lecompte, David; Sol, Hugo et al.
Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007. 2007. p. 1199-1207 (Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Elasto-plastic material parameter identification by inverse methods

AU - Cooreman, Steven

AU - Lecompte, David

AU - Sol, Hugo

AU - Debruyne, Dimitri

AU - Coppieters, Sam

PY - 2007

Y1 - 2007

N2 - Inverse methods offer a powerful tool for the determination of elasto-plastic material properties. Contrary to standard tests, these methods can deal with complex, heterogeneous stress and strain fields which have a larger information contents and hence allow the simultaneous identification of several material parameters. Moreover, the obtained material parameters should be more realistic, since these heterogeneous deformation fields are much closer to those occurring in real (metal) forming operations. In this paper an inverse method is presented for the determination of the unknown material parameters of a DC06 steel. The material behaviour is described by a Swift type hardening law and Hill's 1948 yield surface. The parameter update algorithm is a gradient based Newton-type optimization algorithm. The importance of a suitable material test and the update algorithm itself are discussed in more detail.

AB - Inverse methods offer a powerful tool for the determination of elasto-plastic material properties. Contrary to standard tests, these methods can deal with complex, heterogeneous stress and strain fields which have a larger information contents and hence allow the simultaneous identification of several material parameters. Moreover, the obtained material parameters should be more realistic, since these heterogeneous deformation fields are much closer to those occurring in real (metal) forming operations. In this paper an inverse method is presented for the determination of the unknown material parameters of a DC06 steel. The material behaviour is described by a Swift type hardening law and Hill's 1948 yield surface. The parameter update algorithm is a gradient based Newton-type optimization algorithm. The importance of a suitable material test and the update algorithm itself are discussed in more detail.

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KW - Inverse methods

KW - Swift type hardening law

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SN - 9781604232226

T3 - Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007

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BT - Proceedings of the SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2007

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Y2 - 3 June 2007 through 6 June 2007

ER -

Elasto-plastic material parameter identification by inverse methods

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Publication series

Conference

Keywords

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