Abstract
We have performed numerical simulations of the electromagnetic hoop stress, σθ
, in a REBaCuO disk bulk reinforced by a metal ring during pulsed-field magnetization (PFM) using a solenoid coil, in which the superconducting characteristics of the bulk material were assumed to have realistic J
c-B-T ones. The compressive and tensile σθ
stresses were applied in the bulk during the ascending and descending stages of PFM, respectively. The time and position dependences of the mechanical stresses were estimated. The possibility of mechanical fracture due to these hoop stresses and the effect of the metal ring reinforcement were discussed.Japan Society for the Promotion of Science (JSPS) KAKENHI Grant No. 15K0464
