Fatigue assessment of an electrical resistance welded oil pipeline

Otegui, Luis Jose et al · Elsevier · 2002

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Author / responsible party

Otegui, Luis Jose et al

Publisher

Elsevier

Year

2002

ISSN

0142-1123

ISSN

0142-1123

Language

English

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A blowout in a 14 in. diameter, 1/4 in. thick API 5L X46 oil pipeline was due to the sudden propagation of a fracture at the longitudinal Electrical Resistance Welding (ERW) weld. The cracks initiated from small hook crack-type defects on the external surface of the tube, in the highly deformed and hardened central area of the ERW weld. Fatigue tests were carried out to characterize initiation and propagation of fatigue cracks in base and weld metals, in two regions of the pipeline. Specimens were subjected to cyclic stresses similar to those that were produced during the passage of the scraper. The fatigue growth was modeled by integrating experimental results. Predicted fatigue lives of about 20,000 cycles justify fatigue propagation up to failure in weld metal, from initial 2 mm deep defects introduced during manufacturing. Fil: Otegui, Luis Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina Fil: Chapetti, Mirco Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina

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APA 7

Otegui, L. J. E. A. (2002). Fatigue assessment of an electrical resistance welded oil pipeline. http://hdl.handle.net/11336/37805

MLA

Otegui, Luis Jose et al. "Fatigue assessment of an electrical resistance welded oil pipeline." 2002. http://hdl.handle.net/11336/37805.

Chicago

Otegui, Luis Jose et al. 2002. "Fatigue assessment of an electrical resistance welded oil pipeline.". http://hdl.handle.net/11336/37805.

Harvard

Otegui, L. J. E. A. 2002, Fatigue assessment of an electrical resistance welded oil pipeline, Elsevier, available at: http://hdl.handle.net/11336/37805 [Accessed 9 Aug. 2026].

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Title: Fatigue assessment of an electrical resistance welded oil pipeline

Author / contributors: Otegui, Luis Jose et al

Publisher: Elsevier

Publication year: 2002

ISSN: 0142-1123

ISSN: 0142-1123

Language: English

Subjects

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Electrical Resistance Welding (Erw); Fatigue Assessment; Oil Pipeline; https://purl.org/becyt/ford/3.1; https://purl.org/becyt/ford/3