Premium
A partially bonded beam element model for superconducting magnet pancakes
Author(s) -
Gori R. E.,
Schrefler B. A.
Publication year - 1989
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620270207
Subject(s) - superconductivity , magnet , electrical conductor , superconducting magnet , toroid , electromagnetic coil , stiffness , finite element method , materials science , conductor , stiffness matrix , toroidal field , torus , beam (structure) , physics , structural engineering , mechanical engineering , engineering , condensed matter physics , composite material , geometry , electrical engineering , mathematics , plasma , nuclear physics
The stiffness matrix of a beam made of composite superconductor elements is derived. The effects of friction between conductors through the insulation layers are taken into account. Furthermore, the effects of strand transposition of the wires, already studied by the authors, are included in the model. Some applications of the proposed approach to superconductor layouts proposed for the NET (Next European Torus) toroidal and poloidal field coils are shown. These indicate that the effects of slip are not negligible and should be taken into account in a more reliable structural analysis of the coil system. Parametric studies with varying width and heights of the insulation layer have been also carried out and the corresponding diagrams are shown here.