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Graeme Roberts
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Proceedings Papers

Methodology for Installation of Under-Straight Pipe for Lateral Buckling Mitigation

Alan Roy, Thurairajah Sriskandarajah, Suwarno Gunawan, Pasupathy Ragupathy, Graeme Roberts, Yasin Kassim, Markus Cederfeldt
Proc. ASME. OMAE2022, Volume 3: Materials Technology; Pipelines, Risers, and Subsea Systems, V003T04A025, June 5–10, 2022
Paper No: OMAE2022-79862
https://doi.org/10.1115/OMAE2022-79862
View Paper titled, Methodology for Installation of Under-Straight Pipe for Lateral Buckling Mitigation
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Topics: Buckling, Cable reels, Pipes, Seas, Stress, Vessels, Ocean engineering, Seabed, Bearings, Cycles
Proceedings Papers

Analytical Methods for Preliminary Design of Anchor Flanges for Subsea Structures

Sabesan Rajaratnam, T. Sriskandarajah, Daryl Clayton, Graeme Roberts, Vincent Loentgen, Carlos Charnaux
Proc. ASME. OMAE2019, Volume 3: Structures, Safety, and Reliability, V003T02A086, June 9–14, 2019
Paper No: OMAE2019-95051
https://doi.org/10.1115/OMAE2019-95051
View Paper titled, Analytical Methods for Preliminary Design of Anchor Flanges for Subsea Structures
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Topics: Analytical methods, Design, Flanges, Ocean engineering, Stress
Proceedings Papers

Flexible Flowline Walking Tendency on Seabed With Longitudinal Undulations and Transverse Gradients

Graeme Roberts, T. Sriskandarajah, Gianluca Colonnelli, Arnaud Roux, Alan Roy, P. Ragupathy
Proc. ASME. OMAE2018, Volume 5: Pipelines, Risers, and Subsea Systems, V005T04A021, June 17–22, 2018
Paper No: OMAE2018-78005
https://doi.org/10.1115/OMAE2018-78005
View Paper titled, Flexible Flowline Walking Tendency on Seabed With Longitudinal Undulations and Transverse Gradients
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Topics: Seabed, Finite element analysis, Pressure, Buckling, Simulation, Temperature gradient, Transients (Dynamics)
Proceedings Papers

Peak Accelerations of Equipment Within a Bundle Towhead During Pile Driving Operations

Graeme Roberts, T. Sriskandarajah, Umberto Arosio, Nick McDonald, Dirk Pingen, Sabesan Rajaratnam
Proc. ASME. OMAE2015, Volume 3: Structures, Safety and Reliability, V003T02A095, May 31–June 5, 2015
Paper No: OMAE2015-41002
https://doi.org/10.1115/OMAE2015-41002
View Paper titled, Peak Accelerations of Equipment Within a Bundle Towhead During Pile Driving Operations
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Topics: Buoyancy, Control equipment, Design, Manifolds, North Sea, Ocean engineering, Performance, Pipelines, Seabed, Shock (Mechanics)
Proceedings Papers

Effect of Reeling Installation on Weld Residual Stress in Pipeline Girth Welds

T. Sriskandarajah, Graeme Roberts, Daowu Zhou
Proc. ASME. OMAE2013, Volume 4B: Pipeline and Riser Technology, V04BT04A053, June 9–14, 2013
Paper No: OMAE2013-11502
https://doi.org/10.1115/OMAE2013-11502
View Paper titled, Effect of Reeling Installation on Weld Residual Stress in Pipeline Girth Welds
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Topics: Pipelines, Stress, Welded joints, Welding, Relaxation (Physics), Cable reels, Cycles, Deformation, Dimensions, Displacement
Proceedings Papers

Safety Factor for Use in the Fatigue Crack Growth Assessment of Pipeline Weld Integrity and Engineering Critical Assessments

T. Sriskandarajah, Daowu Zhou, George Hobbs, Graeme Roberts
Proc. ASME. OMAE2013, Volume 4A: Pipeline and Riser Technology, V04AT04A021, June 9–14, 2013
Paper No: OMAE2013-10184
https://doi.org/10.1115/OMAE2013-10184
View Paper titled, Safety Factor for Use in the Fatigue Crack Growth Assessment of Pipeline Weld Integrity and Engineering Critical Assessments
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Topics: Fatigue cracks, Pipelines, Safety, Cycles, Fatigue, Acceptance criteria, Accounting, Design, Fatigue failure, Probability
Proceedings Papers

Comparison of Design and Operational Behaviour of an Offshore Pipeline With Controlled Lateral Buckling

Rafael F. Solano, Bruno R. Antunes, Alexandre S. Hansen, Arek Bedrossian, Graeme Roberts
Proc. ASME. OMAE2012, Volume 3: Pipeline and Riser Technology, 521-530, July 1–6, 2012
Paper No: OMAE2012-83646
https://doi.org/10.1115/OMAE2012-83646
View Paper titled, Comparison of Design and Operational Behaviour of an Offshore Pipeline With Controlled Lateral Buckling
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Topics: Buckling, Design, Underwater pipelines, Pipelines, Soil, Uncertainty, Pipes, Seabed, Stress, Buoyancy
Proceedings Papers

Assessment of Lateral Buckles in a HP/HT Pipeline Using Sidescan Sonar Data

Alexandre Santos Hansen, Bruno Reis Antunes, Rafael Familiar Solano, Graeme Roberts, Arek Bedrossian
Proc. ASME. OMAE2011, Volume 4: Pipeline and Riser Technology, 897-904, June 19–24, 2011
Paper No: OMAE2011-50183
https://doi.org/10.1115/OMAE2011-50183
View Paper titled, Assessment of Lateral Buckles in a HP/HT Pipeline Using Sidescan Sonar Data
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Topics: Pipelines, Design, Buckling, Calibration, Finite element model, Heat, High pressure (Physics), High temperature, Interpolation, Pipes
Proceedings Papers

Evaluation of the Operational Behaviour of a Deepwater Oil Export Pipeline Designed on the Basis of Controlled Lateral Buckling

T. Sriskandarajah, Arek Bedrossian, Graeme Roberts, Peter Tanscheit, Rafael F. Solano, Alexandre Hansen, Bruno R. Antunes
Proc. ASME. OMAE2011, Volume 4: Pipeline and Riser Technology, 915-923, June 19–24, 2011
Paper No: OMAE2011-50188
https://doi.org/10.1115/OMAE2011-50188
View Paper titled, Evaluation of the Operational Behaviour of a Deepwater Oil Export Pipeline Designed on the Basis of Controlled Lateral Buckling
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Topics: Buckling, Pipelines, Design, Finite element model, Buoyancy, Cable reels, Finite element analysis, Flow (Dynamics), Ocean engineering, Operating temperature