ITER-FEAT central solenoid structural analysis and fatigue life assessment

In this paper, we report about the fatigue life assessment of the ITER central-solenoid (CS) together with the related stress analyses. Two design options for integrating the structural support into the conductor have been considered. Various sources of fatigue crack growth rate (FCGR) data (including the CS model coil) have been taken into account. R&D is still needed to confirm the various assumptions made about the material quality and inspection procedures that have not yet been justified by any trial production.