TY - JOUR
T1 - Effect of thermal strain on the mechanical butt joint of a stacked hts cable with a metal jacket
AU - Ito, Satoshi
AU - Sakashita, Takeshi
AU - Hashizume, Hidetoshi
N1 - Funding Information:
Manuscript received October 16, 2009. First published March 18, 2010; current version published May 28, 2010. This work was partially supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Young Scientists (B), 19760593, 2009.
PY - 2010/6
Y1 - 2010/6
N2 - A remountable high-temperature superconducting (HTS) magnet where parts can be mounted and demounted is proposed to allow a superconducting magnet for a fusion reactor to be assembled and repaired. A conceptual study of a mechanical butt joint for a stacked HTS cable with metal jacket was carried out. In this study, contact pressure distribution at the joint surface was evaluated by structural analysis to investigate the deformation of the joint region due to the joint force and the influence of the thermal strain on joint performance. Analytical results showed that thermal strain and Young's modulus of the constituent material strongly affect the contact pressure distribution. In addition, combinations of parallel and perpendicular joint forces, and the procedure with which they are applied, have a strong impact on the realization of a remountable joint in a HTS cable.
AB - A remountable high-temperature superconducting (HTS) magnet where parts can be mounted and demounted is proposed to allow a superconducting magnet for a fusion reactor to be assembled and repaired. A conceptual study of a mechanical butt joint for a stacked HTS cable with metal jacket was carried out. In this study, contact pressure distribution at the joint surface was evaluated by structural analysis to investigate the deformation of the joint region due to the joint force and the influence of the thermal strain on joint performance. Analytical results showed that thermal strain and Young's modulus of the constituent material strongly affect the contact pressure distribution. In addition, combinations of parallel and perpendicular joint forces, and the procedure with which they are applied, have a strong impact on the realization of a remountable joint in a HTS cable.
KW - Fusion reactors
KW - High-temperature superconductors
KW - Power cable connecting
KW - Superconducting magnets
UR - http://www.scopus.com/inward/record.url?scp=77952955883&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77952955883&partnerID=8YFLogxK
U2 - 10.1109/TASC.2010.2043424
DO - 10.1109/TASC.2010.2043424
M3 - Article
AN - SCOPUS:77952955883
VL - 20
SP - 1747
EP - 1750
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 3
M1 - 5433333
ER -