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Description
The Divertor Tokamak Test facility (DTT) is an experimental tokamak machine to be built in Frascati, Italy, at the ENEA research centre. During its development, the DTT has gone through several important design updates. Developing a rigorous finite element methodology to evaluate the performance of all its components has thus been a critical part of the verification phase of each new design iteration. This work summarises the outcome of the structural analyses that support the current design of the Toroidal Field (TF) magnet system, including the superconducting winding pack ($Nb_3Sn$), the casing structure and all of the inter-coil structures. Given the high complexity of the 3D structure to reproduce, some modelling simplifications were mandatory to solve the problem. We hereby describe the finally adopted methodology next to all the motivations we examined to make sure the results were sound and reliable from an engineering point of view.
