22-27 September 2019
Hyatt Regency Hotel Vancouver
Canada/Pacific timezone

Tue-Mo-Po2.05-06 [29]: Frictional Force Effects Between Superconducting Tapes on Stress–Strain Characteristics of GdBCO Magnets

24 Sep 2019, 08:45
2h
Level 2 Posters 1

Level 2 Posters 1

Speaker

Mr Jimin Kim (Korea University)

Description

In designing high field magnets, the enormous mechanical stress on the magnets due to the Lorentz force must be considered. However, the common stress–strain calculations with BJR and/or force balance equation barely considered the frictional force between the superconducting tapes. In this study, the effects of frictional force between these tapes on the stress–strain characteristics were investigated using the intentionally scratched HTS tapes. Mechanical stresses of a magnet wound using the intentionally scratched GdBCO tape were empirically and analytically examined on the basis of the external pressure. The necessity of considering the frictional force between the superconducting tapes for the stress–strain analysis will be discussed in detail based on the test results.

[Acknowledgement]
This work was supported by the Materials and Components Technology Development Program of KEIT [10053590, Development of MgB2 wire and coil with a high critical current and long length for superconducting medical·electric power equipment].

Primary authors

Mr Jimin Kim (Korea University) Haigun Lee (Korea University)

Co-authors

Dr Young-Gyun Kim (Korea University) Mr Kihyun Kim (Korea University) Mr Hyun Sung Noh (Korea University)

Presentation Materials

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