Abstract
The crucial multi-physics problem of how to extrapolate from the performance of an isolatedNb3Sn strand measured in the laboratory to the performance of a superconducting coil usingmulti-strand twisted cables is addressed here. We consider the particular case of the pathgoing from the LMI strand to the international thermonuclear experimental reactor (ITER)toroidal field model coil (TFMC), through its associated Full Size Joint Sample, theTFMC-FSJS. Mechanical, electromagnetic and thermal–hydraulic conditions are simulatedusing the ANSYS, ENSIC and Mithrandir/M&M codes, respectively. At least in this case,the DC performance of the short sample turns out to be relatively close to (consideringerror bars) but not fully representative of that of the coil, showing higher (less compressive)effective thermal strain but also higher sensitivity to the electromechanical load.
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