Session RP1 - Poster Session VIII.
POSTER session, Thursday afternoon, October 30
Fran Hill Southeast Exhibit Hall, ACC
The 2D simulation of the reference plasma disruption in Ignitor (a fast current quench following a Vertical Displacement Event - VDE), has been performed using the MAXFEA code. The resulting excitation loads have been used in a detailed 3D model to evaluate the electromagnetic loads in the first wall and its supports. The model of the most loaded region of the first wall has been performed using a zooming procedure that allows the replacement of the out-of-model plasma, poloidal coils and passive structures with current filaments surrounding the modeled region. To identify the most stressed tiles under the effect of the electromagnetic loads due to the VDE, a preliminary structural analysis has been carried out using a simplified model. Then a more detailed model has been performed for these tiles, with the aim of evaluating the stress on the screw and the pre-load needed to avoid detachment between the tile and the tile-carrier. The thermal loads on the tiles are evaluated independently and the implications of possible other disruption scenarios are discussed.