R and D on the magnetomechanical analysis and design of tokamak blanket structures using combined numerical/experimental techniques

The design of the in-vessel components requires the verification of their structural thermal/mechanical and nuclear performances, and the validation of the solution of support systems to the vessel. But, the transient electromagnetic (EM) loads, caused by rapid variation of magnetic fields, e.g. during disruptions, in these structures surrounding the plasma ring, represent significant design factors. One of the major issues in fusion with magnetic confinement remains the study of these EM forces. The TESLA Laboratory of the JRC Ispra contributes, both theoretically and experimentally, to the European studies for the technical feasibility and acceptability of next step, e.g. ITER, and the commercial fusion reactors. The present paper describes the recent research and development (R and D) activities with regard to magnetomechanical behaviour of shield/blanket structures. (author)