Stress distribution and shape factor of a disk trapped field magnet

Author

Tsuchimoto, M. ; Takashima, H.

Author_Institution

Hokkaido Inst. of Technol., Sapporo, Japan

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

1992

Lastpage

1995

Abstract

Trapped fields and stresses are examined through one- and two-dimensional (axisymmetric three-dimensional) solutions when a bulk high-T_c superconductor (HTS) is fully magnetized by field cooling. The shape factor of the bulk magnet is discussed analytically with ring currents, since the maximum trapped field depends strongly on its shape. The stresses in the bulk HTS are numerically evaluated with the finite-difference method in the framework of the Bean model. Differences between one- and two-dimensional solutions are examined in terms of the maximum tension stress and shear stress

Keywords

finite difference methods; high-temperature superconductors; magnetic fields; superconducting magnets; Bean model; HTSC magnets; bulk high-T_c superconductor; disk trapped field magnet; field cooling; finite-difference method; maximum tension stress; shape factor; shear stress; stress distribution; trapped fields; trapped stresses; Bean model; Cooling; Finite difference methods; High temperature superconductors; Magnetic analysis; Magnetic fields; Magnetic shielding; Shape; Stress; Superconducting magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920244

Filename

920244