Simulation of ratcheting of AISI 316L(N) steel under nonproportional uniaxial loading and high number of load cycles using the Ohno and Wang nonlinear kinematic material model

Abstract Several constitutive models to the description of cyclic plasticity or ratcheting behaviour have been published in recent years. To evaluate the prediction-quality of these models, the calculated results must be compared with reliable experimental examinations. In this paper, the ratcheting behaviour of AISI 316L(N) specimens with uniaxial nonproportional cyclic loading is simulated up to 400 load cycles using the nonlinear kinematic Ohno and Wang model. The comparison is drawn with systematic experiments done by Haupt (Haupt A, Schinke B. Experiments on ratchetting behavior of AISI 316L(N) austenitic steel at room temperature. Journal of Engineering Materials and Technology 1996;118:281–4). The experiments contain a change in mean stress and/or stress amplitude and 1000 load cycles were carried out each. It is shown that all simulations are in good agreement with the experiments.

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