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Title: Flux Pinning-Induced Stress in a Long Hollow Cylindrical Superconductor Restricted by a Metal Tube

Abstract

The tensile stress in a hollow cylindrical superconductor completely restricted by a metal tube in a parallel magnetic field is investigated. Using the plane strain approach, analytical expressions for the stress distribution of the superconductor and the contact stress between the metal tube and the superconductor are obtained and show that both the ratio of Young’s modulus and thickness ratio of the high-temperature superconductors and the metal tube significantly affect the stress distribution in the superconductor explicitly. In addition, the flux pinning-induced stress in the above-mentioned superconductor is systematically studied by the exponential critical state model during the field cooling process. The results indicate that the metal tube can reduce effectively the tensile stress in the hollow cylindrical superconductor during the magnetization process. The findings suggest that the appropriate selection of material parameters and size of the metal tube can improve superconductor performance efficiently.

Authors:
 [1];  [2]
  1. Lanzhou University of Technology, State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals (China)
  2. Lanzhou University of Technology, School of Science (China)
Publication Date:
OSTI Identifier:
22773746
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 31; Journal Issue: 10; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1557-1939
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COOLING; CYLINDRICAL CONFIGURATION; HIGH-TC SUPERCONDUCTORS; MAGNETIC FIELDS; MAGNETIC FLUX; MAGNETIZATION; METALS; STRAINS; STRESSES; THICKNESS; TUBES; YOUNG MODULUS

Citation Formats

Zhao, Yufeng, and Xu, Chi. Flux Pinning-Induced Stress in a Long Hollow Cylindrical Superconductor Restricted by a Metal Tube. United States: N. p., 2018. Web. doi:10.1007/S10948-017-4546-Y.
Zhao, Yufeng, & Xu, Chi. Flux Pinning-Induced Stress in a Long Hollow Cylindrical Superconductor Restricted by a Metal Tube. United States. doi:10.1007/S10948-017-4546-Y.
Zhao, Yufeng, and Xu, Chi. Mon . "Flux Pinning-Induced Stress in a Long Hollow Cylindrical Superconductor Restricted by a Metal Tube". United States. doi:10.1007/S10948-017-4546-Y.
@article{osti_22773746,
title = {Flux Pinning-Induced Stress in a Long Hollow Cylindrical Superconductor Restricted by a Metal Tube},
author = {Zhao, Yufeng and Xu, Chi},
abstractNote = {The tensile stress in a hollow cylindrical superconductor completely restricted by a metal tube in a parallel magnetic field is investigated. Using the plane strain approach, analytical expressions for the stress distribution of the superconductor and the contact stress between the metal tube and the superconductor are obtained and show that both the ratio of Young’s modulus and thickness ratio of the high-temperature superconductors and the metal tube significantly affect the stress distribution in the superconductor explicitly. In addition, the flux pinning-induced stress in the above-mentioned superconductor is systematically studied by the exponential critical state model during the field cooling process. The results indicate that the metal tube can reduce effectively the tensile stress in the hollow cylindrical superconductor during the magnetization process. The findings suggest that the appropriate selection of material parameters and size of the metal tube can improve superconductor performance efficiently.},
doi = {10.1007/S10948-017-4546-Y},
journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 10,
volume = 31,
place = {United States},
year = {2018},
month = {10}
}