Effect of Epoxy Volume Fraction on the Stiffness of Nb$_3$Sn Rutherford Cable Stacks

For the optimization of Nb$_3$Sn superconducting accelerator magnet design and assembly parameters the stress-strain behavior of the coils needs to be known. We have measured the stiffness of Nb$_3$Sn Rutherford cable stacks with different epoxy volume fraction. The cable stack stiffness is strongly...

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Detalles Bibliográficos
Autores principales: Wolf, Felix, Lackner, Friedrich, Hofmann, Michael, Scheuerlein, Christian, Schoerling, Daniel, Tommasini, Davide
Lenguaje:eng
Publicado: 2019
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.1109/TASC.2019.2899497
http://cds.cern.ch/record/2759051
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author Wolf, Felix
Lackner, Friedrich
Hofmann, Michael
Scheuerlein, Christian
Schoerling, Daniel
Tommasini, Davide
author_facet Wolf, Felix
Lackner, Friedrich
Hofmann, Michael
Scheuerlein, Christian
Schoerling, Daniel
Tommasini, Davide
author_sort Wolf, Felix
collection CERN
description For the optimization of Nb$_3$Sn superconducting accelerator magnet design and assembly parameters the stress-strain behavior of the coils needs to be known. We have measured the stiffness of Nb$_3$Sn Rutherford cable stacks with different epoxy volume fraction. The cable stack stiffness is strongly dependent on the load direction. The highest stiffness of about 95 GPa is measured in axial direction, as predicted by the rule of mixtures. In transverse load direction the stiffness is stress dependent, and about half of the axial stiffness. As expected the stiffness of the cable stacks increases with decreasing epoxy volume fraction. The stiffness of a conductor block extracted from an already cold tested 11 T dipole coil is comparable to that of a ten-stack sample with similar epoxy volume fraction.
id oai-inspirehep.net-1851209
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
record_format invenio
spelling oai-inspirehep.net-18512092021-06-21T13:29:14Zdoi:10.1109/TASC.2019.2899497http://cds.cern.ch/record/2759051engWolf, FelixLackner, FriedrichHofmann, MichaelScheuerlein, ChristianSchoerling, DanielTommasini, DavideEffect of Epoxy Volume Fraction on the Stiffness of Nb$_3$Sn Rutherford Cable StacksAccelerators and Storage RingsFor the optimization of Nb$_3$Sn superconducting accelerator magnet design and assembly parameters the stress-strain behavior of the coils needs to be known. We have measured the stiffness of Nb$_3$Sn Rutherford cable stacks with different epoxy volume fraction. The cable stack stiffness is strongly dependent on the load direction. The highest stiffness of about 95 GPa is measured in axial direction, as predicted by the rule of mixtures. In transverse load direction the stiffness is stress dependent, and about half of the axial stiffness. As expected the stiffness of the cable stacks increases with decreasing epoxy volume fraction. The stiffness of a conductor block extracted from an already cold tested 11 T dipole coil is comparable to that of a ten-stack sample with similar epoxy volume fraction.For the optimization of Nb3Sn superconducting accelerator magnet design and assembly parameters the stress-strain behavior of the coils needs to be known. We have measured the stiffness of Nb3Sn Rutherford cable stacks with different epoxy volume fraction. The cable stack stiffness is strongly dependent on the load direction. The highest stiffness of about 95 GPa is measured in axial direction, as predicted by the rule of mixtures. In transverse load direction the stiffness is stress dependent, and about half of the axial stiffness. As expected the stiffness of the cable stacks increases with decreasing epoxy volume fraction. The stiffness of a conductor block extracted from an already cold tested 11 T dipole coil is comparable to that of a ten-stack sample with similar epoxy volume fraction.oai:inspirehep.net:18512092019
spellingShingle Accelerators and Storage Rings
Wolf, Felix
Lackner, Friedrich
Hofmann, Michael
Scheuerlein, Christian
Schoerling, Daniel
Tommasini, Davide
Effect of Epoxy Volume Fraction on the Stiffness of Nb$_3$Sn Rutherford Cable Stacks
title Effect of Epoxy Volume Fraction on the Stiffness of Nb$_3$Sn Rutherford Cable Stacks
title_full Effect of Epoxy Volume Fraction on the Stiffness of Nb$_3$Sn Rutherford Cable Stacks
title_fullStr Effect of Epoxy Volume Fraction on the Stiffness of Nb$_3$Sn Rutherford Cable Stacks
title_full_unstemmed Effect of Epoxy Volume Fraction on the Stiffness of Nb$_3$Sn Rutherford Cable Stacks
title_short Effect of Epoxy Volume Fraction on the Stiffness of Nb$_3$Sn Rutherford Cable Stacks
title_sort effect of epoxy volume fraction on the stiffness of nb$_3$sn rutherford cable stacks
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1109/TASC.2019.2899497
http://cds.cern.ch/record/2759051
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