Title :
Numerical evaluation of maximum stress of a bulk superconductor in partial magnetization
Author :
Tsuchimoto, M. ; Murata, K. ; Iori, M. ; Itoh, Y.
Author_Institution :
Hokkaido Inst. of Technol., Sapporo, Japan
fDate :
6/1/2004 12:00:00 AM
Abstract :
Stresses in a bulk high-temperature superconductor (HTS) are numerically evaluated in magnetization process by field cooling. Shielding current distributions are obtained through macroscopic numerical simulation using Maxwell equations and critical state model. Stress distributions are obtained through numerical analysis using finite-element method. Differences between 1D and axisymmetric 3D solutions are discussed for the maximum stress distributions. Magnetic field profiles on the HTS are also discussed to estimate the shielding current distribution and maximum stress in partial magnetization.
Keywords :
Maxwell equations; current distribution; finite element analysis; high-temperature superconductors; magnetic cooling; magnetic shielding; magnetisation; stress analysis; Maxwell equations; bulk high-temperature superconductor; bulk superconductor; critical state model; field cooling; finite-element method; macroscopic numerical simulation; magnetic field profiles; magnetization process; maximum stress distributions; numerical analysis; numerical evaluation; partial magnetization; shielding current distributions; Cooling; Current distribution; Finite element methods; High temperature superconductors; Magnetic shielding; Magnetization processes; Maxwell equations; Numerical analysis; Numerical simulation; Stress; Bulk superconductor; maximum stress; shielding current distribution;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2004.830440
