Identification of the mechanical properties of superconducting windings using the virtual fields method
Identification of the mechanical properties of superconducting windings using the virtual fields method
Tensile tests were performed in order to identify the stiffness components of superconducting coils. The stereo image correlation technique was used for full-field displacement measurements. The strain components were then obtained from the measured displacement fields by numerical differentiation. Because differentiation is very sensitive to spatial noise, the displacement maps were fitted by polynomials before differentiation using a linear least-square method. Then, the four in-plane stiffnesses of the double pancake were determined using the Virtual Fields Method in the orthotropy basis.
Full-field measurement, mechanical properties, superconducting coils, virtual fields method
1993-1997
Kim, Jin-Hwan
58c19f90-cbdc-4441-b2b8-c8969e96254f
Nunio, Francois
e55e3068-dd95-4599-976b-3a9be032361c
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Vedrine, Pierre
dea69bf3-8605-4a01-9949-05e2b47c9e3a
June 2010
Kim, Jin-Hwan
58c19f90-cbdc-4441-b2b8-c8969e96254f
Nunio, Francois
e55e3068-dd95-4599-976b-3a9be032361c
Pierron, Fabrice
a1fb4a70-6f34-4625-bc23-fcb6996b79b4
Vedrine, Pierre
dea69bf3-8605-4a01-9949-05e2b47c9e3a
Kim, Jin-Hwan, Nunio, Francois, Pierron, Fabrice and Vedrine, Pierre
(2010)
Identification of the mechanical properties of superconducting windings using the virtual fields method.
IEEE Transactions on Applied Superconductivity, 20 (3), .
(doi:10.1109/TASC.2010.2041340).
Abstract
Tensile tests were performed in order to identify the stiffness components of superconducting coils. The stereo image correlation technique was used for full-field displacement measurements. The strain components were then obtained from the measured displacement fields by numerical differentiation. Because differentiation is very sensitive to spatial noise, the displacement maps were fitted by polynomials before differentiation using a linear least-square method. Then, the four in-plane stiffnesses of the double pancake were determined using the Virtual Fields Method in the orthotropy basis.
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e-pub ahead of print date: 24 May 2010
Published date: June 2010
Keywords:
Full-field measurement, mechanical properties, superconducting coils, virtual fields method
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 210601
URI: http://eprints.soton.ac.uk/id/eprint/210601
ISSN: 1051-8223
PURE UUID: b77eb4d7-f609-4849-b73a-22cb8c39f2a7
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Date deposited: 13 Feb 2012 11:14
Last modified: 15 Mar 2024 03:35
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Contributors
Author:
Jin-Hwan Kim
Author:
Francois Nunio
Author:
Pierre Vedrine
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