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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

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

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

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: Advantages of Using Direct Calculations in Fracture Assessments of Pipelines

Christian Thaulow, Bjo̸rn Skallerud, K. R. Jayadevan, Espen Berg
Proc. ASME. OMAE2005, 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 3, 675-681, June 12–17, 2005
Paper No: OMAE2005-67521
DOI: https://doi.org/10.1115/OMAE2005-67521
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Topics: Fracture (Materials), Pipelines, Underwater pipelines, Springs, Pipes, Deformation, Fracture (Process), Pressure, Stress, Surface cracks
Proceedings Papers

Generation Behavior of Thermal and Residual Stresses Due to Phase Transformation During Welding Heat Cycles

Masahito Mochizuki, Shogo Matsushima, Masao Toyoda, Zhiliang Zhang, O̸yvind Gundersen, Christian Thaulow
Proc. ASME. PVP2002, Computational Weld Mechanics, Constraint, and Weld Fracture, 123-129, August 5–9, 2002
Paper No: PVP2002-1115
DOI: https://doi.org/10.1115/PVP2002-1115
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Topics: Phase transitions, Residual stresses, Thermodynamic cycles, Welding, Stress, Materials properties, Thermal stresses, Computer simulation, Mechanical properties, Simulation