Mechanical analysis of the KSTAR CS model coil

KSTAR (Korea Superconducting Tokamak Advanced Research) CS (central solenoid) model coil made with CIC (cable in conduit) superconductor had been developed in the Department of Nuclear Engineering, Seoul National University. In superconducting magnets, there are mechanical stresses by Lorentz force and thermal stresses by the difference of thermal contraction between conduit and insulator. In this study, the computational analysis with ANSYS, a common FEA (finite element analysis) code, and experimental measurements of KSTAR CS model coil with resistance foil type strain gages have been performed. According to the results of computational analysis, KSTAR CS model coil satisfies safety design limitations. Experimental results obtained from the test of KSTAR CS model coil were compared with those of computational analysis.