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Progressive deformations due to the combination of a cyclic nonlinear temperature distribution and electromechanical loadings may pose a serious problem for the design in advanced tokamacs. For first wall mock-ups exposed to a surface heat flux of 0.5 MW/m 2 and a load controlled mechanical bending moment experimental and theoretical analysis was carried out under different cycle conditions. A simplified beam model was developed for the investigation of the thermomechanical behaviour. The special features of ratcheting under bending conditions are discussed.