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Proceedings Papers

ECA for Operation: Is Today’s Practice of Relying on SENB Instead of SENT Testing While Not Taking Internal Pressure Into Account Conservative?

Erlend Olso̸, Espen Heier, Ba˚rd Nyhus, Erling O̸stby

Proc. ASME. OMAE2011, Volume 3: Materials Technology; Jan Vugts Symposium on Design Methodology of Offshore Structures; Jo Pinkster Symposium on Second Order Wave Drift Forces on Floating Structures; Johan Wichers Symposium on Mooring of Floating Structures in Waves, 571-580, June 19–24, 2011

Paper No: OMAE2011-50208

DOI: https://doi.org/10.1115/OMAE2011-50208

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Topics: Pressure, Testing, Fracture mechanics, Pipeline integrity, Pipelines, Stress

Proceedings Papers

Full-Scale Burst Test of Hydrogen Gas X65 Pipeline

Shuji Aihara, Hans I. Lange, Kei Misawa, Yasuhito Imai, Yu Sedei, Erling O̸stby, Christian Thaulow

Proc. ASME. IPC2010, 2010 8th International Pipeline Conference, Volume 2, 415-422, September 27–October 1, 2010

Paper No: IPC2010-31235

DOI: https://doi.org/10.1115/IPC2010-31235

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Topics: Hydrogen, Pipelines, Fracture (Materials), Steel, Computer simulation, Crack propagation, Explosives, Fracture toughness, Methane, Pipes

Proceedings Papers

Effects of the Yield Criterion on Predicted Fracture Responses of Pipelines Subjected to Large Plastic Deformation With and Without Internal Pressure

Alexandre Kane, Erling O̸stby, Odd-Geir Lademo, Torodd Berstad, Odd Sture Hopperstad

Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6, 251-259, June 6–11, 2010

Paper No: OMAE2010-20943

DOI: https://doi.org/10.1115/OMAE2010-20943

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Topics: Deformation, Fracture (Materials), Pipelines, Pressure, Pipes, Shapes, Certainty, Displacement, Engineering simulation, Finite element analysis

Proceedings Papers

Axisymmetric Modeling of Constraint Effect on the Ductile Crack Growth Resistance of Circumferentially Cracked Pipes

Jie Xu, Zhiliang Zhang, Erling O̸stby, Ba˚rd Nyhus, Dongbai Sun

Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B, 133-142, June 6–11, 2010

Paper No: OMAE2010-20083

DOI: https://doi.org/10.1115/OMAE2010-20083

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Topics: Ductile fracture, Modeling, Pipes, Fracture (Materials), Geometry, Fracture mechanics, Boundary-value problems, Hardening, Manufacturing, Materials properties

Proceedings Papers

Numerical Analyses of Ductile Fracture Behavior in 2D Plane Strain and Axisymmetric Models Using the Complete Gurson Model

Jie Xu, Zhiliang Zhang, Erling O̸stby, Ba˚rd Nyhus, Dongbai Sun

Proc. ASME. PVP2009, Volume 6: Materials and Fabrication, Parts A and B, 1815-1824, July 26–30, 2009

Paper No: PVP2009-77721

DOI: https://doi.org/10.1115/PVP2009-77721

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Topics: Ductile fracture, Numerical analysis, Plane strain, Fracture (Materials), Geometry, Pipes, Tension, Fracture toughness, Pressure, Size effect

Proceedings Papers

Assessment of Fracture Integrity for Trawl Impact of the Ormen Lange SFD Pipelines

Erlend Olso̸, Ba˚rd Nyhus, Erling O̸stby, Morten Hval, Hans Olav Knagenhjelm

Proc. ASME. OMAE2009, Volume 3: Pipeline and Riser Technology, 841-850, May 31–June 5, 2009

Paper No: OMAE2009-80017

DOI: https://doi.org/10.1115/OMAE2009-80017

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Topics: Fracture (Materials), Fracture (Process), Pipelines, Pressure, Accounting, Damage, Design, Failure, Finite element analysis, Finite element model

Proceedings Papers

Simulations of Ductile Tearing at Large Strains of Biaxially Loaded Pipes

Jacob Dybwad, Rikard To¨rnqvist, Erling O̸stby, Christian Thaulow

Proc. ASME. OMAE2009, Volume 6: Materials Technology; C.C. Mei Symposium on Wave Mechanics and Hydrodynamics; Offshore Measurement and Data Interpretation, 115-122, May 31–June 5, 2009

Paper No: OMAE2009-79631

DOI: https://doi.org/10.1115/OMAE2009-79631

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Topics: Pipes, Simulation, Finite element analysis, Fracture (Materials), Modeling, Calibration, Crack propagation, Fracture toughness, Surface cracks, Underwater pipelines

Proceedings Papers

Large Scale Tests of Strain Capacity of Pipe Sections With Circumferential Defects Subjected to Installation-Induced Plastic Strain History

Ba˚rd Nyhus, Erling O̸stby, Zhiliang Zhang, Erlend Olso̸, Per Arne Ro̸stadsand, Pa˚l Are Eikrem

Proc. ASME. OMAE2009, Volume 6: Materials Technology; C.C. Mei Symposium on Wave Mechanics and Hydrodynamics; Offshore Measurement and Data Interpretation, 259-266, May 31–June 5, 2009

Paper No: OMAE2009-80146

DOI: https://doi.org/10.1115/OMAE2009-80146

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Topics: Pipes, Compression, Deformation, Fibers, Flow (Dynamics), Fracture toughness, Metals, Pipelines, Pressure, Tension

Proceedings Papers

Prediction of Hydrogen Embrittlement in 25% Cr Duplex Stainless Steel Based on Cohesive Zone Simulation

Vigdis Olden, Christian Thaulow, Torodd Berstad, Erling O̸stby

Proc. ASME. OMAE2009, Volume 6: Materials Technology; C.C. Mei Symposium on Wave Mechanics and Hydrodynamics; Offshore Measurement and Data Interpretation, 209-218, May 31–June 5, 2009

Paper No: OMAE2009-79999

DOI: https://doi.org/10.1115/OMAE2009-79999

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Topics: Hydrogen embrittlement, Simulation, Stainless steel, Stress, Hydrogen, Fracture (Materials), Fracture (Process), Separation (Technology), Diffusion (Physics), Polynomials

Proceedings Papers

Constraint Effects in Weld Thermal Simulated Steel Specimens

Erling O̸stby, Christian Thaulow, Ba˚rd Nyhus

Proc. ASME. PVP2008, Volume 1: Codes and Standards, 923-932, July 27–31, 2008

Paper No: PVP2008-61812

DOI: https://doi.org/10.1115/PVP2008-61812

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Topics: Steel, Brittle fracture, Calibration, Fracture toughness, Testing, Weibull distribution

Proceedings Papers

Burst Tests for High-Pressure Hydrogen Gas Line Pipes

Shuji Aihara, Erling O̸stby, Hans I. Lange, Kei Misawa, Yasuhito Imai, Christian Thaulow

Proc. ASME. IPC2008, 2008 7th International Pipeline Conference, Volume 3, 117-125, September 29–October 3, 2008

Paper No: IPC2008-64166

DOI: https://doi.org/10.1115/IPC2008-64166

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Topics: High pressure (Physics), Hydrogen, Pipes, Fracture (Materials), Methane, Numerical analysis, Pressure measurement, Shear (Mechanics), Wall thickness, Waves

Proceedings Papers

A Cohesive Zone Modeling Approach to Hydrogen Induced Stress Cracking in 25%Cr Duplex Stainless Steel

Vigdis Olden, Christian Thaulow, Roy Johnsen, Erling O̸stby

Proc. ASME. OMAE2007, Volume 4: Materials Technology; Ocean Engineering, 57-65, June 10–15, 2007

Paper No: OMAE2007-29194

DOI: https://doi.org/10.1115/OMAE2007-29194

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Topics: Fracture (Process), Hydrogen, Modeling, Stainless steel, Stress, Fracture (Materials), Boundary-value problems, Diffusion (Physics), Finite element analysis, Ocean engineering

Proceedings Papers

SmartPipe: Self Diagnostic Pipelines and Risers

Ole O̸ystein Knudsen, Egil Giertsen, Per Schjo̸lberg-Henriksen, Erling O̸stby, Knut Grythe, Fro̸ydis Oldervoll

Proc. ASME. OMAE2007, Volume 4: Materials Technology; Ocean Engineering, 161-166, June 10–15, 2007

Paper No: OMAE2007-29485

DOI: https://doi.org/10.1115/OMAE2007-29485

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Topics: Pipeline risers, Pipelines, Risers (Casting), Sensor networks, Condition monitoring, Materials degradation, Sensors, Stress, Underwater pipelines, Engineering simulation

Proceedings Papers

Fracture Control — Offshore Pipelines: Probabilistic Fracture Assessment of Surface Cracked Ductile Pipelines Using Analytical Equations

Andreas Sandvik, Erling O̸stby, Arvid Naess, Gudfinnur Sigurdsson, Christian Thaulow

Proc. ASME. OMAE2005, 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 3, 641-647, June 12–17, 2005

Paper No: OMAE2005-67517

DOI: https://doi.org/10.1115/OMAE2005-67517

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Topics: Fracture (Materials), Pipelines, Underwater pipelines, Pipes, Accounting, Ductile fracture, Fracture mechanics, Pressure, Probability, Stress

Proceedings Papers

Fracture Control — Offshore Pipelines: Experimental Studies on the Effect of Crack Depth and Asymmetric Geometries on the Ductile Tearing Resistance

Ba˚rd Nyhus, Erling O̸stby, Hans Olav Knagenhjelm, Scott Black, Per Arne Ro̸stadsand

Proc. ASME. OMAE2005, 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 3, 731-740, June 12–17, 2005

Paper No: OMAE2005-67532

DOI: https://doi.org/10.1115/OMAE2005-67532

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Topics: Fracture (Materials), Underwater pipelines, Fracture toughness, Pipes, Geometry, Engineering simulation, Fracture mechanics, Pressure, Simulation, Tension

Proceedings Papers

Fracture Control — Offshore Pipelines: New Strain-Based Fracture Mechanics Equations Including the Effects of Biaxial Loading, Mismatch, and Misalignment

Erling O̸stby

Proc. ASME. OMAE2005, 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 3, 649-658, June 12–17, 2005

Paper No: OMAE2005-67518

DOI: https://doi.org/10.1115/OMAE2005-67518

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Topics: Fracture (Materials), Fracture mechanics, Underwater pipelines, Engineering simulation, Pipes, Simulation, Wall thickness, Deformation, Surface cracks, Yield stress

Journal citation

NARROW

ECA for Operation: Is Today’s Practice of Relying on SENB Instead of SENT Testing While Not Taking Internal Pressure Into Account Conservative?

Full-Scale Burst Test of Hydrogen Gas X65 Pipeline

Effects of the Yield Criterion on Predicted Fracture Responses of Pipelines Subjected to Large Plastic Deformation With and Without Internal Pressure

Axisymmetric Modeling of Constraint Effect on the Ductile Crack Growth Resistance of Circumferentially Cracked Pipes

Numerical Analyses of Ductile Fracture Behavior in 2D Plane Strain and Axisymmetric Models Using the Complete Gurson Model

Assessment of Fracture Integrity for Trawl Impact of the Ormen Lange SFD Pipelines

Simulations of Ductile Tearing at Large Strains of Biaxially Loaded Pipes

Large Scale Tests of Strain Capacity of Pipe Sections With Circumferential Defects Subjected to Installation-Induced Plastic Strain History

Prediction of Hydrogen Embrittlement in 25% Cr Duplex Stainless Steel Based on Cohesive Zone Simulation

Constraint Effects in Weld Thermal Simulated Steel Specimens

Burst Tests for High-Pressure Hydrogen Gas Line Pipes

A Cohesive Zone Modeling Approach to Hydrogen Induced Stress Cracking in 25%Cr Duplex Stainless Steel

SmartPipe: Self Diagnostic Pipelines and Risers

Fracture Control — Offshore Pipelines: Probabilistic Fracture Assessment of Surface Cracked Ductile Pipelines Using Analytical Equations

Fracture Control — Offshore Pipelines: Experimental Studies on the Effect of Crack Depth and Asymmetric Geometries on the Ductile Tearing Resistance

Fracture Control — Offshore Pipelines: New Strain-Based Fracture Mechanics Equations Including the Effects of Biaxial Loading, Mismatch, and Misalignment

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