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By Roger Chen, PhD, PEng and Kenny Farrow, PhD, PEng, Stress Engineering Services Canada
Cracks discovered on energy equipment and pipelines can compromise structural integrity and safety. Rupture failures are obviously costly, but so are untimely (premature), indiscriminate shutdowns for repair. Hence, accurate fracture assessment is crucial.
Accurate fracture assessment requires a strong grasp of stress analysis, fracture mechanics and materials science. At Stress Engineering Service Canada, we have the expertise and experience to carry out assessments covering the spectrum of complexity, from simple screening (e.g., Level 1) to the most sophisticated analyses where the actual crack is modeled (e.g., Level 3).
Level 3 fracture assessment
Our analyses can adhere to various codes or guidelines, such as ASME FFS API 579-1/ASME FFS-1, CSA Z662 or BS 7910. In cases where discovered cracks are assessed to be subcritical, we can estimate remaining life (until the crack becomes critical) via fracture mechanics-based fatigue analysis. Analyses can ultimately be validated by full scale tests.
Crack arrestor fracture analysis and test validation
At Stress Engineering Service Canada, we are ready to help you should you discover cracks on your assets.
Contact: [email protected] or [email protected]
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