ABSTRACT
Ratcheting is one unique feature of metal under cyclic loading. The simulation of ratcheting demands that incremental plastic deformation terms are added to the general cyclic stress—strain equations. The combination of a steady state and cyclic loadings may produce ratcheting. Ratcheting may cause structural failure due to structural instability. The rod was defined with the three-term Chaboche model plus the Voce isotropic hardening law. The axisymmetrical condition and symmetrical condition were applied on edges. The top edge was loaded with ten cycles of loadings; each cycle had a maximum of 50MPa in tension and a minimum of 30MPa in compression A notched bar with the Chaboche model under cycling loading was studied in ANSYS190. The relation between the axial strain and axial stress reveals the ratcheting due to the Chaboche model.
