As a result obtained criterion takes directly into account the influence of the strain rate on the ultimate properties of
polymeric materials.
The series of the experiments were conducted to verify of the applicability of criterion (2) for evaluation of the
durability of the polymeric parts of the structures at the complex loading programs that assume the change of the
strain rate in the range of some decimal orders. These experiments were run as at the tension of the specimen of FC,
so at the complex stress state of the HFPM. The most part of experiments was carried out with the stepwise program
of the change of the strain rate or the strain rate intensity.
We compared the estimated values of the damage in the fracture moments with results of calculation of these
values of the damage by using of the deformational criterion of the long-time fracture, see e.g. Mahutov (1981)