ABSTRACT

Change of the value Re is very slow and practically there is no change in the field of a large number of cycles where it decreases sharply. However, the change of the value Re in the field of accumulated dilatations with small number of cycles is large, gradual and very important. Each new cycle is calculated with the new hysteresis configuration depending on the size Re. Hence, this is a simplified rheological treatment but on the other hand, by using simple rheological models, real and very complex behavior of materials under cyclic loading can be analyzed. Identification of key and most important parameters is essential for quality modeling.