Extension of the sensitivity-based virtual fields to large deformation anisotropic plasticity
Extension of the sensitivity-based virtual fields to large deformation anisotropic plasticity
The virtual fields method is an approach to inversely identify material parameters using full-field deformation data. In this work, we extend the sensitivity-based virtual fields to large deformation anisotropic plasticity. The method is firstly generalized to the finite deformation framework and then tested on numerical data obtained from a finite element model of a deep-notched specimen subjected to a tensile loading. We demonstrated the feasibility of the method for two anisotropic plasticity models: Hill48 and Yld2000-2D, and showed that all the parameters could be characterise from such a test. The sensitivity-based virtual fields performed better than the currently accepted standard approach of user-defined ones in terms of accuracy and robustness. The main advantage of the sensitivity-based virtual fields comes from the automation of virtual fields generation. The process can be applied to any geometry and any constitutive law.
Anisotropic plasticity, Full-field measurements, Material testing, Sensitivity-based virtual fields, The virtual fields method
457–476
Marek, Aleksander
7cfb1c40-2e95-4e2b-81e5-c515674bece6
Davis, Frances M.
20f89066-bbac-42dc-908d-d89a747dc399
Rossi, Marco
1fea52ac-027b-4309-82e5-dd9cba8249e6
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
2019
Marek, Aleksander
7cfb1c40-2e95-4e2b-81e5-c515674bece6
Davis, Frances M.
20f89066-bbac-42dc-908d-d89a747dc399
Rossi, Marco
1fea52ac-027b-4309-82e5-dd9cba8249e6
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Marek, Aleksander, Davis, Frances M., Rossi, Marco and Pierron, Fabrice
(2019)
Extension of the sensitivity-based virtual fields to large deformation anisotropic plasticity.
International Journal of Material Forming, 12 (3), .
(doi:10.1007/s12289-018-1428-1).
Abstract
The virtual fields method is an approach to inversely identify material parameters using full-field deformation data. In this work, we extend the sensitivity-based virtual fields to large deformation anisotropic plasticity. The method is firstly generalized to the finite deformation framework and then tested on numerical data obtained from a finite element model of a deep-notched specimen subjected to a tensile loading. We demonstrated the feasibility of the method for two anisotropic plasticity models: Hill48 and Yld2000-2D, and showed that all the parameters could be characterise from such a test. The sensitivity-based virtual fields performed better than the currently accepted standard approach of user-defined ones in terms of accuracy and robustness. The main advantage of the sensitivity-based virtual fields comes from the automation of virtual fields generation. The process can be applied to any geometry and any constitutive law.
Text
Marek 2018 Article Extension Of The Sensitivity
- Version of Record
More information
Accepted/In Press date: 5 July 2018
e-pub ahead of print date: 24 July 2018
Published date: 2019
Keywords:
Anisotropic plasticity, Full-field measurements, Material testing, Sensitivity-based virtual fields, The virtual fields method
Identifiers
Local EPrints ID: 422993
URI: http://eprints.soton.ac.uk/id/eprint/422993
ISSN: 1960-6206
PURE UUID: 2aaf8f11-c6fc-4978-91aa-b7d0987c5ccb
Catalogue record
Date deposited: 09 Aug 2018 16:30
Last modified: 06 Jun 2024 02:05
Export record
Altmetrics
Contributors
Author:
Frances M. Davis
Author:
Marco Rossi
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
