Abstract In this study, a new method for determining the material parameters of cyclic plasticity is presented. The can be applied to evaluate model from any loading histories measured experimentally. experimental data require basic processing only utilized. calibrate different elastoplastic models such as Chaboche–Rousselier (Ch–R) constitutive equation or other formulations which use rules is...

Tensile test data for structural steels are ubiquitous. However, the information monotonic loading provides with respect to material’s characteristics is limited. Notably, features of inelastic response cyclic loading, such as Bauschinger effect, cannot be determined without testing a load reversal protocol. This study aimed at addressing this shortcoming by formulating constrained optimization...

On the basis of plastic bounding surface model, the damage theory for structured soils and unsaturated soil mechanics, an elastoplastic model for unsaturated loessic soils under cyclic loading has been elaborated. Firstly, the description of bond degradation in a damage framework is given, linking the damage of soil’s structure to the accumulated strain. The Barcelona Basic Model (BBM) was cons...

the global environmental concerns have put the light weighting of structures on the fore front of the research in transportation industry. among other light weight alloys, the transportation industry is considering magnesium intensive light body-in-white structure in automotive applications. although the research in modeling technique areas is very active, a suitable practical model mimicking t...

foundations behavior is affected by soil behavior which can vary from dilative to contractive depending on the stress level, particularly in dense frictional soils. the zero extension lines (zel) method has been generally developed to predict the foundations behavior. knowledge of soil behavior enables the zel method to predict the general and local shear failure modes. in this paper, a relativ...