AbstractThe First Wall structure of a tokamak-type thermonuclear fusion reactor, such as NET (Next European Torus) or ITER (International Thermonuclear Experimental Reactor), should be able to withstand the combined effects of normal operating condition loads as well as significant electromagnetic transients induced during a plasma disruption event. Thus, stability analysis of such structures under large dynamic loads is essential for their adequate design.The stability analyses performed are based on incremental static analysis (RIKS method) on an imperfect structural geometry which is determined on the basis of the shape of the lowest buckling eigenvector obtained by a linearized buckling (EULER) analysis. Non linear behaviour due to large rotations and material behaviour, including strain-rate effects, were introduced in the incremental analysis.
Problems of a thermonuclear reactor with a rotating plasma