Major disruptions are an important impediment to improve tokamak plasma performance and a critical design consideration of tokamak ignition devices. Ignited plasma disruptions are studied in the IGNITEX experiment. A two-phase (energy quench followed by current decay) disruption is phcnomenologically simulated and its effects on the conducting structures are analyzed. Various disruption conditions are studied. The effects of the single-turn TF magnet system are taken into account. The implications on the IGNITEX machine design are discussed.