Calibration of a distortional hardening model of plasticity

J. Plešek; Z. Hrubý; S. Parma; H. P. Feigenbaum; Y. F. Dafalias

Calibration of a distortional hardening model of plasticity

J. Plešek, Z. Hrubý, S. Parma, H. P. Feigenbaum, Y. F. Dafalias

Mechanical Engineering

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

Abstract

Directional distortion hardening is manifested by the distortion of the shape of the yield surface such that a region of high curvature develops roughly in the direction of loading while a region of lower curvature develops in the opposite direction. Recently, several models were proposed. The simplest one studied, makes use of the Armstrong- Frederick rule, having five independent parameters. The analytical solution for uniaxial cyclic test is derived together with that for the stabilized cyclic response. The evolving shapes of the yield surfaces and their sensitivity to inputs parameters are analysed. An algorithm for material constants fitting is proposed.

Original language	English (US)
Title of host publication	Proceedings of the 11th International Conference on Computational Structures Technology, CST 2012
Publisher	Civil-Comp Press
Volume	99
ISBN (Print)	9781905088546
State	Published - 2012
Event	11th International Conference on Computational Structures Technology, CST 2012 - Dubrovnik, Croatia Duration: Sep 4 2012 → Sep 7 2012

Other

Other	11th International Conference on Computational Structures Technology, CST 2012
Country/Territory	Croatia
City	Dubrovnik
Period	9/4/12 → 9/7/12

Keywords

Directional distortional hardening
Metal plasticity
Yield surface

ASJC Scopus subject areas

Environmental Engineering
Civil and Structural Engineering
Computational Theory and Mathematics
Artificial Intelligence

Cite this

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title = "Calibration of a distortional hardening model of plasticity",

abstract = "Directional distortion hardening is manifested by the distortion of the shape of the yield surface such that a region of high curvature develops roughly in the direction of loading while a region of lower curvature develops in the opposite direction. Recently, several models were proposed. The simplest one studied, makes use of the Armstrong- Frederick rule, having five independent parameters. The analytical solution for uniaxial cyclic test is derived together with that for the stabilized cyclic response. The evolving shapes of the yield surfaces and their sensitivity to inputs parameters are analysed. An algorithm for material constants fitting is proposed.",

keywords = "Directional distortional hardening, Metal plasticity, Yield surface",

author = "J. Ple{\v s}ek and Z. Hrub{\'y} and S. Parma and Feigenbaum, {H. P.} and Dafalias, {Y. F.}",

year = "2012",

language = "English (US)",

isbn = "9781905088546",

volume = "99",

booktitle = "Proceedings of the 11th International Conference on Computational Structures Technology, CST 2012",

publisher = "Civil-Comp Press",

note = "11th International Conference on Computational Structures Technology, CST 2012 ; Conference date: 04-09-2012 Through 07-09-2012",

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TY - GEN

T1 - Calibration of a distortional hardening model of plasticity

AU - Plešek, J.

AU - Hrubý, Z.

AU - Parma, S.

AU - Feigenbaum, H. P.

AU - Dafalias, Y. F.

PY - 2012

Y1 - 2012

N2 - Directional distortion hardening is manifested by the distortion of the shape of the yield surface such that a region of high curvature develops roughly in the direction of loading while a region of lower curvature develops in the opposite direction. Recently, several models were proposed. The simplest one studied, makes use of the Armstrong- Frederick rule, having five independent parameters. The analytical solution for uniaxial cyclic test is derived together with that for the stabilized cyclic response. The evolving shapes of the yield surfaces and their sensitivity to inputs parameters are analysed. An algorithm for material constants fitting is proposed.

AB - Directional distortion hardening is manifested by the distortion of the shape of the yield surface such that a region of high curvature develops roughly in the direction of loading while a region of lower curvature develops in the opposite direction. Recently, several models were proposed. The simplest one studied, makes use of the Armstrong- Frederick rule, having five independent parameters. The analytical solution for uniaxial cyclic test is derived together with that for the stabilized cyclic response. The evolving shapes of the yield surfaces and their sensitivity to inputs parameters are analysed. An algorithm for material constants fitting is proposed.

KW - Directional distortional hardening

KW - Metal plasticity

KW - Yield surface

UR - http://www.scopus.com/inward/record.url?scp=84893982056&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84893982056&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84893982056

SN - 9781905088546

VL - 99

BT - Proceedings of the 11th International Conference on Computational Structures Technology, CST 2012

PB - Civil-Comp Press

T2 - 11th International Conference on Computational Structures Technology, CST 2012

Y2 - 4 September 2012 through 7 September 2012

ER -

Calibration of a distortional hardening model of plasticity

Abstract

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Keywords

ASJC Scopus subject areas

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