Modeling of Large-Strain Cyclic Plasticity for Accurate Springback Simulation
This paper describes a model of large-strain cyclic plasticity and its verification by some experiments of cyclic plasticity and biaxial stretching. The performance of this model in springback simulation is discussed by comparing the calculated results for S-rail forming with the experimental data on high strength steel sheet (HSS) of 980MPa-TS. The results of numerical simulations of the springback agree well with the corresponding experimental data, including the torsion-type springback appearing in S-rail forming.
N. Ohno and T. Uehara
F. Yoshida et al., "Modeling of Large-Strain Cyclic Plasticity for Accurate Springback Simulation", Key Engineering Materials, Vols. 340-341, pp. 811-816, 2007