Numerical optimisation of mechanical ring reinforcement for bulk high-Temperature superconductors
Authors
Barthlott, D
Huang, KY
Durrell, JH
Cardwell, DA
Holzapfel, B
Ainslie, MD
Publication Date
2020Journal Title
Journal of Physics: Conference Series
Conference Name
14th European Conference on Applied Superconductivity
ISSN
1742-6588
Publisher
IOP Publishing
Volume
1559
Issue
1
Language
en
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Barthlott, D., Huang, K., Durrell, J., Cardwell, D., Holzapfel, B., & Ainslie, M. (2020). Numerical optimisation of mechanical ring reinforcement for bulk high-Temperature superconductors. Journal of Physics: Conference Series, 1559 (1) https://doi.org/10.1088/1742-6596/1559/1/012031
Abstract
<jats:title>Abstract</jats:title>
<jats:p>The finite element method has been used extensively in recent years to solve various problems related to applied superconductivity and provides a useful tool for analysing and predicting experimental results. Based on a recently-developed modelling framework, implemented in the finite element software package <jats:italic>COMSOL Multiphysics,</jats:italic> investigations on the minimum ring reinforcement required to prevent mechanical failure in bulk high-temperature superconducting magnets have been carried out. Assuming homogeneous <jats:italic>J<jats:sub>c</jats:sub>
</jats:italic>(<jats:italic>B,T</jats:italic>) across the bulk sample irrespective of its dimensions, the maximum magnetic stresses experienced, and the minimum ring thickness required to prevent the hoop and radial stresses from exceeding the tensile strength of the bulk superconductor have been determined for varying values of the Young’s modulus, radius, height and temperature of a representative single-grain Ag-containing Gd-Ba-Cu-O bulk sample. This comprehensive analysis details the influence each of these key parameters has on the magnetic stress and hence their impact on the necessary ring thickness to prevent mechanical failure in any given system, i.e., for any combination of material properties and sample dimensions.</jats:p>
Keywords
Paper
Sponsorship
Engineering and Physical Sciences Research Council (EP/P020313/1)
Identifiers
jpcs_1559_1_012031, j15591031
External DOI: https://doi.org/10.1088/1742-6596/1559/1/012031
This record's URL: https://www.repository.cam.ac.uk/handle/1810/333548
Rights
Licence:
http://creativecommons.org/licenses/by/3.0/
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