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Stig Wa¨stberg
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Proceedings Papers

Stress Based Design Guidelines for Hydrogen Induced Stress Cracking (HISC) Avoidance in Duplex Materials

Pedro M. Vargas, Stig Wa¨stberg, Paul Woollin
Proc. ASME. OMAE2009, Volume 6: Materials Technology; C.C. Mei Symposium on Wave Mechanics and Hydrodynamics; Offshore Measurement and Data Interpretation, 91-99, May 31–June 5, 2009
Paper No: OMAE2009-79504
DOI: https://doi.org/10.1115/OMAE2009-79504
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Topics: Cracking (Materials), Design, Fracture (Process), Hydrogen, Stress, Creep, Cathodic protection, Failure, Failure mechanisms, Finite element analysis
Proceedings Papers

Hydrogen Induced Stress Cracking (HISC) of Stainless Steels Under Cathodic Protection in Seawater: Presentation of a New Test Method

Roy Johnsen, Ba˚rd Nyhus, Stig Wa¨stberg
Proc. ASME. OMAE2009, Volume 6: Materials Technology; C.C. Mei Symposium on Wave Mechanics and Hydrodynamics; Offshore Measurement and Data Interpretation, 55-67, May 31–June 5, 2009
Paper No: OMAE2009-79325
DOI: https://doi.org/10.1115/OMAE2009-79325
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Topics: Cathodic protection, Cracking (Materials), Fracture (Process), Hydrogen, Seawater, Stainless steel, Stress, Alloys, Carbon steel, Failure
Proceedings Papers

Hydrogen Induced Stress Cracking (HISC) in Duplex Stainless Steels: DNV-RP-F112, Design of Duplex Stainless Steel Subsea Equipment Exposed to Cathodic Protection

Stig Wa¨stberg, Morten Solno̸rdal, Gustav Heiberg, Rikard To¨rnqvist, Pedro M. Vargas
Proc. ASME. OMAE2009, Volume 6: Materials Technology; C.C. Mei Symposium on Wave Mechanics and Hydrodynamics; Offshore Measurement and Data Interpretation, 123-135, May 31–June 5, 2009
Paper No: OMAE2009-79655
DOI: https://doi.org/10.1115/OMAE2009-79655
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Topics: Cathodic protection, Cracking (Materials), Design, Fracture (Process), Hydrogen, Ocean engineering, Stainless steel, Stress, Failure, Failure mechanisms
Proceedings Papers

Fatigue Testing and S-N Data for Fatigue Analysis of Piles

Inge Lotsberg, Stig Wa¨stberg, Hugo Ulle, Per Haagensen, Michael E. Hall
Proc. ASME. OMAE2008, Volume 5: Materials Technology; CFD and VIV, 145-157, June 15–20, 2008
Paper No: OMAE2008-57250
DOI: https://doi.org/10.1115/OMAE2008-57250
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Topics: Fatigue, Fatigue analysis, Fatigue testing, Cycles, Stress, Design, Tension, Compressive stress, Fatigue life, Manufacturing
Proceedings Papers

Fatigue and Fracture of Ship and Offshore Structures: Summary of the Fatigue and Fracture Committee Report to the International Ship and Offshore Structures Congress (ISSC) 2006

Stig Wa¨stberg
Proc. ASME. OMAE2007, Volume 2: Structures, Safety and Reliability; Petroleum Technology Symposium, 619-629, June 10–15, 2007
Paper No: OMAE2007-29763
DOI: https://doi.org/10.1115/OMAE2007-29763
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Topics: Fatigue, Fracture (Materials), Fracture (Process), Offshore structures, Ships, Manufacturing, Design, Engineering design processes, Fitness-for-service, Inspection
Proceedings Papers

Fatigue Testing and Analysis of Full Scale Girth Welded Tubulars

Stig Wa¨stberg, Mamdouh M. Salama
Proc. ASME. OMAE2007, Volume 4: Materials Technology; Ocean Engineering, 125-132, June 10–15, 2007
Paper No: OMAE2007-29399
DOI: https://doi.org/10.1115/OMAE2007-29399
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Topics: Design, Fatigue, Fatigue design, Fatigue properties, Fatigue testing, Fracture (Materials), Fracture (Process), Free spanning pipelines, Ocean engineering, Pipeline risers
Proceedings Papers

Characteristic S-N Curves for Fatigue Design of Titanium Risers

Knut O. Ronold, Stig Wa¨stberg
Proc. ASME. OMAE2002, 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 3, 355-359, June 23–28, 2002
Paper No: OMAE2002-28475
DOI: https://doi.org/10.1115/OMAE2002-28475
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Topics: Fatigue design, Pipeline risers, Risers (Casting), Titanium, Design, Statistical analysis, Welded joints, Fatigue failure, Fatigue testing, Offshore structures
Proceedings Papers

Testing of Segment Specimens and Full Scale Pipes for the Assessment of Fracture During Reeling Installation

Stig Wa¨stberg
Proc. ASME. OMAE2004, 23rd International Conference on Offshore Mechanics and Arctic Engineering, Volume 3, 9-18, June 20–25, 2004
Paper No: OMAE2004-51060
DOI: https://doi.org/10.1115/OMAE2004-51060
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Topics: Fracture (Materials), Pipes, Testing, Base metals, Finite element methods, Finite element model, Fracture mechanics, Materials testing, Metals, Ocean engineering
Proceedings Papers

Guidelines for Engineering Critical Assessments for Pipeline Installation Methods Introducing Cyclic Plastic Strain

Stig Wa¨stberg, Henryk Pisarski, Ba˚rd Nyhus
Proc. ASME. OMAE2004, 23rd International Conference on Offshore Mechanics and Arctic Engineering, Volume 3, 19-26, June 20–25, 2004
Paper No: OMAE2004-51061
DOI: https://doi.org/10.1115/OMAE2004-51061
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Topics: Pipelines, Pipes, Testing, Finite element methods, Finite element model, Fracture (Materials), Fracture (Process), Materials testing