Abstract

Background There are residual tensile stresses in a metal pipe close to the contact surfaces. These stresses change in complex polyextremum functions. As a result, the surface of pipes, often, has the combined crack-like damage. Aims and Objectives To determine the strength of oil pipes with combined crack-like damage using the criteria of static fracture toughness and to characterize their relationship. Methods The complex theoretical and experimental studies to assess the strength of pipelines with crack-like damages. Results The analytic dependence for the calculation of the strength of pipes with combined crack-like damage was obtained and proved on the basis of which pipelines safe operation resource was assessment. The interrelation of the static fracture toughness and mechanical characteristics of pipes with different categories of strength, characterized by the ratio of yield strength and durability of metal was defined. Conclusion Pipes strength coefficient data is the basis for pipes allowable imperfection rate setting.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.