Fracture risk assessment of trunk oil pipeline by corrosion fatigue mechanism of service defects development
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Date
2013
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Publisher
Видавництво Львівської політехніки
Abstract
Engineering estimations of the corrosion fracture velocity of oil pipelines have been given, which include both mechanical and physical-chemical interaction operation factors of strained material with workspace. Characteristics of cyclic corrosion crack resistance of a pipe metal of the exploited oil-trunk pipeline with the regard for operating production factors have been defined. New data about corrosive and fatigue failure of pipes in dependence on the initial sizes and forms of their detected defects have been obtained. Cyclic used and unused pipe investigated steel crack resistance charts have been compiled. Also, it has been established, that aqueous corrosive
environments (soil and distilled water) essentially influence the fatigue failure propagation process in the investigated steel.
Description
Keywords
trunk pipeline, corrosive fissuring defect, corrosive environment, cyclic corrosive crack resistance chart, crack growth rate, threshold (Kth) and critical (Kfс) stress intensity factor
Citation
Luzhetskyy V. Fracture risk assessment of trunk oil pipeline by corrosion fatigue mechanism of service defects development / Vasyl Luzhetskyy // Інженерна механіка та транспорт : матеріали IІІ Міжнародної конференції молодих вчених EМТ-2013, 21–23 листопада 2013 року, Україна, Львів / Національний університет "Львівська політехніка". – Львів : Видавництво Львівської політехніки, 2013. – С. 102-103. – (4-й Міжнародний молодіжний фестиваль науки "Litteris et Artibus"). – Bibliography: 10 titles.