The Research of the Corrosion Crack Impact on tne Meaning of the Tension Rate Coefficient for the Pipeline

It is necessary to define the tension rate coefficient (TRC) for the carrying capacity determination of pipelines with different operational damages. A new method of the TRC determination based on the shifts of the crack edges is being considered. The effect of the corrosive damage geometrical characteristics and the crack length on the TRC meaning has been researched. The TRC dependence from these factors has been graphed. The mathematical treatment of the results allowed to get the TRC determination formula in the form of the third degree polynomial.