Аннотация
Complex experiments were conducted on deformation dependence on time for different static loads and irradiation doses in polyethylene terephthalate. Curves of time (t) dependence of deformation (ε) show a significant change in the behavior of the material after irradiation. The obtained dependence curves of ε on t for both non-irradiated and irradiated materials are satisfactorily described by cascade-probability model.