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Identification of the local elasto-plastic behavior of FSW welds using the Virtual Fields Method

Identification of the local elasto-plastic behavior of FSW welds using the Virtual Fields Method
Identification of the local elasto-plastic behavior of FSW welds using the Virtual Fields Method
The present study focuses on the identification of the evolution of the local elasto-plastic properties of an Al 5456 FSW weld. To make the best use of the data collected using digital image correlation and to obtain an accurate identification of the evolution of the mechanical properties throughout the weld, an inverse procedure based on the Virtual Fields Method is proposed. Then, the strain-rate dependence of these properties is investigated by performing a set of tensile tests with a cross-head displacement speed evolving from 0.01 mm.s???1 to 76 mm.s???1. Identification of the evolution of the plastic properties throughout the weld with high spatial resolution has been achieved, and results from our study indicate that the plastic parameters in the center of the weld undergo a significant change even at low strain-rate (10 s???1).
friction stir welding, virtual fields method, elastic-plastic deformation, digital image correlation
1741-2765
849-859
Le Louëdec, G.
e1541285-0fb3-4ce8-963c-5ca0e2579314
Pierron, F.
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Sutton, M.A.
9683ede4-2649-4e2f-bdf1-cd746a0ecfc5
Reynolds, A.P.
bab44580-e866-4e02-8efd-fec5db664a97
Le Louëdec, G.
e1541285-0fb3-4ce8-963c-5ca0e2579314
Pierron, F.
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Sutton, M.A.
9683ede4-2649-4e2f-bdf1-cd746a0ecfc5
Reynolds, A.P.
bab44580-e866-4e02-8efd-fec5db664a97

Le Louëdec, G., Pierron, F., Sutton, M.A. and Reynolds, A.P. (2013) Identification of the local elasto-plastic behavior of FSW welds using the Virtual Fields Method. Experimental Mechanics, 53 (5), 849-859. (doi:10.1007/s11340-012-9679-0).

Record type: Article

Abstract

The present study focuses on the identification of the evolution of the local elasto-plastic properties of an Al 5456 FSW weld. To make the best use of the data collected using digital image correlation and to obtain an accurate identification of the evolution of the mechanical properties throughout the weld, an inverse procedure based on the Virtual Fields Method is proposed. Then, the strain-rate dependence of these properties is investigated by performing a set of tensile tests with a cross-head displacement speed evolving from 0.01 mm.s???1 to 76 mm.s???1. Identification of the evolution of the plastic properties throughout the weld with high spatial resolution has been achieved, and results from our study indicate that the plastic parameters in the center of the weld undergo a significant change even at low strain-rate (10 s???1).

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More information

Published date: 2013
Keywords: friction stir welding, virtual fields method, elastic-plastic deformation, digital image correlation
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 357204
URI: http://eprints.soton.ac.uk/id/eprint/357204
ISSN: 1741-2765
PURE UUID: 5c744ad7-5b11-4773-b701-fdbbdfde1a19
ORCID for F. Pierron: ORCID iD orcid.org/0000-0003-2813-4994

Catalogue record

Date deposited: 04 Oct 2013 13:42
Last modified: 15 Mar 2024 03:35

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Contributors

Author: G. Le Louëdec
Author: F. Pierron ORCID iD
Author: M.A. Sutton
Author: A.P. Reynolds

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