On the Constitutive Relations in Plasticity at Complex Loading

The calculations of boundary problems by different plasticity theories give different results for many applied problems. One of these reasons is complex loading. Because, calculation of structures and installations which operate under plastic strain conditions, have been done on the basis of simplified stress-strain constraints. Besides, overwhelming majority of structures usually operates under complex multiparametric loading conditions, it is necessary to look for the ways of stating boundary problems of the bodies’ stability and plastic yielding on the basis of experimentally and theoretically substantiated stress-strain correlations. It is a complex problem including the following: comprehensive investigation of material properties; modelling of constitutive relations taking into consideration the experimental investigations of the materials; formulation of numerical approach in combination with new physical correlations.

Перевод пока недоступен