Comput.Struct. 32, 787-795, 1989
F.G. Rammerstorfer¹, K. Dorninger¹, H.J. Böhm¹ and F. Zerobin²
¹Institute of Lightweight Structures and Aerospace
TU Wien, Vienna, Austria
²ELIN Union, Weiz, Austria
In order to achieve the extremely high magnetic fields (8 to 10 Tesla)
required for CERN's LHC (large hadron collider) project superconducting
coils are used in the deflecting magnets.
One possible technology is the use of the brittle material Nb3Sn,
which must be kept at low temperatures (4.2 K).
The cooling down process and the variation of the stron electromagnetic
forces during operation require special care.
These situations are simulated by a finite element model taking into account
the frictional contact between the individual components of the magnet
In addition to the stress and strain distribution in the magnet the knowledge
of local relative motions generating frictional heat is important for the
consideration of the stability of the superconducting material.