Numerical analysis of the processes of complex plastic deformation of structural steels under low-cycle loading
DOI:
https://doi.org/10.7242/1999-6691/2011.4.1.2Keywords:
complex loading, low cycle fatigue, plastic deformation, deformation trajectory, stress-strain state, numerical simulationAbstract
Numerical studies of complex plastic deformation of some structural steels under low-cycle loading have been carried out to demonstrate the adequacy of a new variant of the constitutive equations of the theory of plasticity with cinematic and isotropic hardening developed in authors' early works and to determine its applicability boundaries. The calculated results have been compared with the data from the full-scale experiments. It is shown that the proposed model can provide both qualitative and quantitative description of the main effects of complex plastic deformation of metals in the case of the arbitrary nonproportional paths of low-cycle loading.
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