FEM Analysis of Nb-Sn Rutherford-type Cables

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An important part of superconducting accelerator magnet work is the conductor. To produce magnetic fields larger than 10 T, brittle conductors are typically used. For instance, for Nb{sub 3}Sn the original round wire, in the form of a composite of Copper, Niobium and Tin, is assembled into a so-called Rutherford-type cable, which is used to wind the magnet. The magnet is then subjected to a high temperature heat treatment to produce the chemical reactions that make the material superconducting. At this stage the superconductor is brittle and its superconducting properties sensitive to strain. This work is based on the development ... continued below

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5 pages

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Barzi, Emanuela; Gallo, Giuseppe; Neri, Paolo & /Fermilab January 1, 2011.

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An important part of superconducting accelerator magnet work is the conductor. To produce magnetic fields larger than 10 T, brittle conductors are typically used. For instance, for Nb{sub 3}Sn the original round wire, in the form of a composite of Copper, Niobium and Tin, is assembled into a so-called Rutherford-type cable, which is used to wind the magnet. The magnet is then subjected to a high temperature heat treatment to produce the chemical reactions that make the material superconducting. At this stage the superconductor is brittle and its superconducting properties sensitive to strain. This work is based on the development of a 2D finite element model, which simulates the mechanical behavior of Rutherford-type cable before heat treatment. The model was applied to a number of different cable architectures. To validate a critical criterion adopted into the single Nb-Sn wire analysis, the results of the model were compared with those measured experimentally on cable cross sections.

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5 pages

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  • Presented at 22nd International Conference on Magnet Technology (MT-22), Marseille, France, 12-16 Sep 2011

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  • Report No.: FERMILAB-PUB-11-449-TD
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 1029346
  • Archival Resource Key: ark:/67531/metadc829707

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  • January 1, 2011

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  • May 19, 2016, 3:16 p.m.

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  • Aug. 30, 2016, 3:26 p.m.

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Barzi, Emanuela; Gallo, Giuseppe; Neri, Paolo & /Fermilab. FEM Analysis of Nb-Sn Rutherford-type Cables, article, January 1, 2011; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc829707/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.