Simulation of ratcheting of AISI 31 6L(N) steel under nonproportional uniaxial loading and high number of load cycles using the Ohno and Wang nonlinear kinematic material model

摘要

Several constitutive models to the description ofcyclic plasticity or ratcheting behaviour have been published inrecent years. To evaluate the prediction-quality of these models,the calculated results must be compared with reliableexperimental examinations. In this paper, the ratchetingbehaviour of AISI 3 16L(N) specimens with uniaxialnonproportional cyclic loading is simulated up to 400 loadcycles using the nonlinear kinematic Ohno and Wang model.The comparison is drawn with systematic experiments done byHaupt (Haupt A, Schinke B. Experiments on ratchettingbehavior of AISI 3 16L(N) austenitic steel at room temperature.Journal of Engineering Materials and Technology 1996; 118:281-4). The experiments contain a change in mean stressand/or stress amplitude and 1000 load cycles were carried outeach. It is shown that all simulations are in good agreementwith the experiments.