Structural Integrity Assessments for Strain-Based Design of Pipelines

Structural integrity assessments play a key role in ensuring the safe service of oil/gas pipelines. In recent years, significant developments in pipeline strain-based design have taken place to account for the large plasticity involved in the installation and operation of pipelines. However, current methodologies cannot properly address the effects of anisotropic material properties and weldments on the behaviours of defects in pipelines. It is proposed here to develop fracture mechanics methodologies that quantify these effects. Both global and local approaches will be used in the study. Numerical simulations, employing micromechanical models, and experimental testing of various laboratory specimens will be carried out to quantify the ductile fracture behaviors. The outcome of the research will enable more reliable assessments for pipeline structural components. BMT Canada is one of the industrial leaders in providing pipeline structural integrity assessment services. Through the proposed research project, BMT Canada will be well positioned in providing the best engineering services, and stay ahead of the competitors.

Faculty Supervisor:

Xin Wang;Ronald Miller


Arnav Rana


BMT Fleet Technology Ltd.


Engineering - mechanical


Professional, scientific and technical services


Carleton University



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