Identification of nonlinear kinematic hardening constitutive model parameters using the virtual fields method for advanced high strength steels
Identification of nonlinear kinematic hardening constitutive model parameters using the virtual fields method for advanced high strength steels
In this work, the nonlinear kinematic hardening combined with Voce isotropic hardening was selected to characterize the material behavior of advanced high strength steel sheet samples subjected to a few reverse loading cycles. Multi-components of backstress were considered for the combined nonlinear kinematical hardening model, namely, one, two, and three backstress components. To calibrate the model, an inverse problem solution tool, so-called virtual fields
method, which takes full advantage of full-field deformation measurement, was applied to identify the material constitutive parameters. First, finite element simulations of forward-reverse simple shear were performed to validate the proposed identification method. The influence of strain noise on the identification accuracy was also evaluated. Then, the proposed method was applied to three kinds of sheet metals (DP600, TRIP780 and TWIP980) tested under two cycles of forward-reverse simple shear for parameter identification. The identification results obtained with different number of backstress components were critically discussed.
30-43
Fu, Jiawei
4d70ee31-623d-4d44-869f-74d8333746bf
Barlat, Frédéric
2e8d23b9-adeb-430b-8a2c-dbcdf95151ec
Kim, Jin-Hwan
58c19f90-cbdc-4441-b2b8-c8969e96254f
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
15 December 2016
Fu, Jiawei
4d70ee31-623d-4d44-869f-74d8333746bf
Barlat, Frédéric
2e8d23b9-adeb-430b-8a2c-dbcdf95151ec
Kim, Jin-Hwan
58c19f90-cbdc-4441-b2b8-c8969e96254f
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Fu, Jiawei, Barlat, Frédéric, Kim, Jin-Hwan and Pierron, Fabrice
(2016)
Identification of nonlinear kinematic hardening constitutive model parameters using the virtual fields method for advanced high strength steels.
International Journal of Solids and Structures, 102-103, .
(doi:10.1016/j.ijsolstr.2016.10.020).
Abstract
In this work, the nonlinear kinematic hardening combined with Voce isotropic hardening was selected to characterize the material behavior of advanced high strength steel sheet samples subjected to a few reverse loading cycles. Multi-components of backstress were considered for the combined nonlinear kinematical hardening model, namely, one, two, and three backstress components. To calibrate the model, an inverse problem solution tool, so-called virtual fields
method, which takes full advantage of full-field deformation measurement, was applied to identify the material constitutive parameters. First, finite element simulations of forward-reverse simple shear were performed to validate the proposed identification method. The influence of strain noise on the identification accuracy was also evaluated. Then, the proposed method was applied to three kinds of sheet metals (DP600, TRIP780 and TWIP980) tested under two cycles of forward-reverse simple shear for parameter identification. The identification results obtained with different number of backstress components were critically discussed.
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Accepted/In Press date: 20 October 2016
e-pub ahead of print date: 21 October 2016
Published date: 15 December 2016
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 401966
URI: http://eprints.soton.ac.uk/id/eprint/401966
ISSN: 0020-7683
PURE UUID: 53f85f9a-28d4-419c-8c41-483b23242c0b
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Date deposited: 26 Oct 2016 10:41
Last modified: 15 Mar 2024 06:00
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Author:
Jiawei Fu
Author:
Frédéric Barlat
Author:
Jin-Hwan Kim
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