August 27, 2017 to September 1, 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

Degradation of Critical Current in an HTS Tape Considering Curvature of Elliptical Shape under Combined Bending and Torsion

Aug 29, 2017, 1:15 PM
1h 45m
Posters Area

Posters Area

Poster Presentation of 1h45m G6 - Mechanical Behavior, Stress and Strain Tue-Af-Po2.09


Mr Seunghak Han (Electrical and Electronic Engineering, Yonsei University)


Degradation of critical current in a high temperature superconducting (HTS) tape under bending conditions had been previously investigated. These investigations were focused on only either bending or torsion. A rotating flux pump is used to study the charging characteristics of HTS synchronous motor. In order to design the rotating flux pump connected in series, the elliptical winding applied together with combined bending and torsion is essential. Therefore, in this paper, the critical current considering curvature of elliptical shape is measured with regard to nine kinds of mandrels. The shapes of mandrels are a tall prolate ellipsoid, oblate ellipsoid and half circle. The diameters of each shape are 20, 30 and 40 mm, respectively. The experiments are mainly composed of four conditions; straight, bending, torsion, and combined bending and torsion. Finally, the experimental observations have been compared with the theoretical predictions.

Submitters Country Republic of Korea

Primary author

Mr Seunghak Han (Electrical and Electronic Engineering, Yonsei University)


Mr jeyull Lee (Electrical and Electronic Engineering, Yonsei University) Mr Haeryong Jeon (Electrical and Electronic Engineering, Yonsei University) Mr Ji Hyung Kim (Jeju National University) Mr Chang Ju Hyeon (Jeju National University) Prof. Ho Min Kim (Jeju National University) Prof. Tae Kuk Ko (Electrical and Electronic Engineering, Yonsei University) Prof. Yong Soo Yoon (SHIN ANSAN UNIVERSITY)

Presentation materials