Determination of anisotropic plastic constitutive parameters using the virtual fields method
Determination of anisotropic plastic constitutive parameters using the virtual fields method
The aim of the present study is to retrieve all the anisotropic plastic constitutive parameters from uniaxial loading. A complex geometry which can provide very heterogeneous stress states in a uniaxial tensile test was chosen for steel sheet specimens. A digital image correlation technique was used for the full-field heterogeneous strain measurement. The orthotropic Hill1948 yield criterion with Swift isotropic hardening was adopted as an elasto-plastic constitutive model. The virtual fields method (VFM) was employed as an inverse analytical tool to determine the constitutive parameters. All the parameters were successfully identified using the VFM by combining two tensile test results obtained in rolling and transverse directions.
full-field measurements, virtual fields method, plasticity, anisotropy, advanced high strength steel
1189-1204
Kim, J.-H.
11800855-201a-457b-97f7-a148bacc061c
Barlat, F.
48bfc27a-f489-42b4-987c-76c6f84d0714
Pierron, F.
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Lee, M.-G.
8b364108-3aa1-40b5-ad42-57268f09f8ba
1 September 2014
Kim, J.-H.
11800855-201a-457b-97f7-a148bacc061c
Barlat, F.
48bfc27a-f489-42b4-987c-76c6f84d0714
Pierron, F.
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Lee, M.-G.
8b364108-3aa1-40b5-ad42-57268f09f8ba
Kim, J.-H., Barlat, F., Pierron, F. and Lee, M.-G.
(2014)
Determination of anisotropic plastic constitutive parameters using the virtual fields method.
Experimental Mechanics, 54 (7), .
(doi:10.1007/s11340-014-9879-x).
Abstract
The aim of the present study is to retrieve all the anisotropic plastic constitutive parameters from uniaxial loading. A complex geometry which can provide very heterogeneous stress states in a uniaxial tensile test was chosen for steel sheet specimens. A digital image correlation technique was used for the full-field heterogeneous strain measurement. The orthotropic Hill1948 yield criterion with Swift isotropic hardening was adopted as an elasto-plastic constitutive model. The virtual fields method (VFM) was employed as an inverse analytical tool to determine the constitutive parameters. All the parameters were successfully identified using the VFM by combining two tensile test results obtained in rolling and transverse directions.
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Published date: 1 September 2014
Keywords:
full-field measurements, virtual fields method, plasticity, anisotropy, advanced high strength steel
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 371909
URI: http://eprints.soton.ac.uk/id/eprint/371909
ISSN: 1741-2765
PURE UUID: 499f6587-a16f-48ce-a71f-48a28b21dfe5
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Date deposited: 24 Nov 2014 12:46
Last modified: 15 Mar 2024 03:35
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Contributors
Author:
J.-H. Kim
Author:
F. Barlat
Author:
M.-G. Lee
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