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Pregled bibliografske jedinice broj: 435640

Damage Level Estimate of API J55 Steel for Welded Seam Casing Pipes

Šarkoćević, Živče; Arsić, Miodrag; Međo, Bojan; Kozak, Dražan; Rakin, Marko; Burzić, Zijah; Sedmak, Aleksandar
Damage Level Estimate of API J55 Steel for Welded Seam Casing Pipes // Strojarstvo, 51 (2009), 4; 303-311 (međunarodna recenzija, članak, znanstveni)

Damage Level Estimate of API J55 Steel for Welded Seam Casing Pipes

Šarkoćević, Živče ; Arsić, Miodrag ; Međo, Bojan ; Kozak, Dražan ; Rakin, Marko ; Burzić, Zijah ; Sedmak, Aleksandar

Strojarstvo (0562-1887) 51 (2009), 4; 303-311

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Casing pipe; Damage level; High frequency contact welding; Pipe integrity

The subject of this paper is investigation of the damage level of API J55 steel, used for manufacturing the casing pipes by high frequency (HF) contact welding. The analysed pipe was withdrawn after about 70 000 hours of service in an oil drilling rig. Experimental analysis included determining the mechanical properties of the base material and welded joint, in particular the tensile and impact toughness testing. Fracture behaviour is examined by testing the modified compact tension (CT) specimens machined with a pre-crack in the base metal, weld metal and heat affected zone (HAZ). The critical value of the stress intensity factor KIc is determined using the critical value of the J integral JIc, because the plane strain conditions for fracture toughness could not be satisfied. Fatigue crack growth rate and fatigue threshold stress intensity factor range are determined by three point bending tests of the Charpy specimens with a V-notch in each of the three zones of the welded joint. The investigation conducted on specimens cut from the exploited pipe and the new pipe of the same grade revealed that the material properties were not seriously deteriorated during the analyzed period of service.

Izvorni jezik

Znanstvena područja


Projekt / tema
152-1201910-1909 - Analiza i procjena loma konstrukcija iz anizotropnih materijala (Dražan Kozak, )

Strojarski fakultet, Slavonski Brod

Autor s matičnim brojem:
Dražan Kozak, (190253)

Časopis indeksira:

  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

Uključenost u ostale bibliografske baze podataka:

  • Chemical Engineering and Biotechnology Abstracts
  • Fluidex (Fluid Engineering Abstracts)
  • World Textiles
  • Engineering Index Monthly
  • Metal Abstracts
  • Corrosion Abstracts
  • CAD-CAM Abstracts
  • Environment Abstracts
  • Mechanical Engineering Abstracts
  • Aluminium Industry Abstracts