Evaluation of HTS butt-jointing performance, focusing on the joint stress distribution

Issue title: Proceedings of the twelfth International Symposium on Interdisciplinary Electromagnetic, Mechanic and Biomedical Problems, ISEM Bad Gastein

Article type: Research Article

Authors: Takami, Shohei^a | Hashizume, Hidetoshi^a | Ito, Satoshi^{a; *} | Yamamoto, Yuko^a

Affiliations: [a] Department of Quantum Science and Energy Engineering, Tohoku University, Aramaki-Aza-Aoba 6-6-01-2, Aoba-ku, Sendai, Miyagi, 980-8579, Japan

Correspondence: [*] Corresponding author. Tel.: +81 0 22 795 7906; Fax: +81 0 22 795 7906; E-mail: [email protected]

Abstract: As a basic research for development of the remountable HTS magnet, experimental evaluation of the butt-jointing method with BSCCO 2223 HTS cable under the large joint stress is performed. In this experiment an optimum joint stress value, which makes joint resistance minimum, is obviously confirmed at each applied current value. In addition, numerical structural analysis is performed to clarify the stress distribution at the joint surface of HTS cable under the experimental condition. From these experimental and numerical results, the efficient jointing condition is considered to reduce the joint resistance.

Keywords: Remountable HTS magnet, BSCCO 2223, butt-jointing method, stress distribution analysis

DOI: 10.3233/JAE-2007-888

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 25, no. 1-4, pp. 281-286, 2007