Ekstrapolacyjna metoda opisu prób pełzania przy obciążeniach wielostopniowych

An extrapolation method for the description isothermal creeping of several materials under multi-step loads is proposed in this paper. For the description of multistep creeping, the method makes use only of the one-step creep law, and the material memory functions defined in the paper. The method proposed was verified experimentally for two-step creeping of fibre-reinforced polyester resin, polyamide and steel, providing a good description of experimental curves.