Gerhard Ersdal
Professor II i levetidsforlengelse av offshorekonstruksjoner
Kontakt
E-post: gerhard.ersdal@uis.no
Organisasjonsenhet
Det teknisk-naturvitenskapelige fakultet
Institutt for maskin, bygg og materialteknologi
Publikasjoner
Vitenskapelige publikasjoner
Ersdal, Gerhard
(2024)
Risk-informed decision-making for assessment of existing structures. I: Analytical and experimental methods in mechanical and civil engineering : Contributions of the 1st olympiad in engineering science (OES 2023).Springer Nature.
ISBN 978-3-031-49722-3.
s.146-165.
Riise, Simen; Atteya, Mostafa Ahmed; Mikkelsen, Ove; Ersdal, Gerhard
(2023)
Experimental assessment of cracked tubular joints repaired with crack-deflecting holes and weld-toe grinding.IOP Conference Series: Materials Science and Engineering.
ISSN 1757-8981.
Ersdal, Gerhard; Atteya, Mostafa Ahmed; Mikkelsen, Ove
(2023)
Statistical evaluation of tubular joint SCFs from test data and finite element analyses.IOP Conference Series: Materials Science and Engineering.
ISSN 1757-8981.
Stacey, Alexander; Ersdal, Gerhard
(2022)
Structural Integrity Management of Ageing Offshore Structures: A Regulatory Perspective . I: Ageing and life extension of offshore facilities : Proceedings of the ASME 2021 International conference on asset integrity management .The American Society of Mechanical Engineers (ASME).
ISBN 9780791885789.
DOI: 10.1115/1.885789_ch1
Sharp, John; Salama, Mamdouh M.; Ersdal, Gerhard; Stacey, Alexander
(2022)
Life extension and integrity management of ageing pipelines . I: Ageing and life extension of offshore facilities : Proceedings of the ASME 2021 International conference on asset integrity management .The American Society of Mechanical Engineers (ASME).
ISBN 9780791885789.
s.233-239.
Sharp, John; Ersdal, Gerhard
(2022)
Overvview of Underwater Inspection and Repair for Ageing Offshore Structures . I: Ageing and life extension of offshore facilities : Proceedings of the ASME 2021 International conference on asset integrity management .The American Society of Mechanical Engineers (ASME).
ISBN 9780791885789.
s.277-285.
O'Malley, John; Lervik, Andreas; Wiley, Tim; Ersdal, Gerhard
(2022)
Inspection and Maintenance of Ageing Concrete Oil and Gas Structures on the Norwegian Continental Shelf . I: Ageing and life extension of offshore facilities : Proceedings of the ASME 2021 International conference on asset integrity management .The American Society of Mechanical Engineers (ASME).
ISBN 9780791885789.
Fjeldstad, Arne; Landet, Einar; Bjørheim, Lars Geir; Ersdal, Gerhard
(2022)
Repair Methods for Loadbearing Steel Structures Operating on the Norwegian Continental Shelf . I: Ageing and life extension of offshore facilities : Proceedings of the ASME 2021 International conference on asset integrity management .The American Society of Mechanical Engineers (ASME).
ISBN 9780791885789.
Ersdal, Gerhard; Halsne, Marita; Oma, Narve; Andersen, Terje L; Langøy, Morten Andre; Bjørheim, Lars Geir
(2022)
Semisubmersible in Service Experiences on the Norwegian Continental Shelf . I: ASME 2022 41st International Conference on Ocean, Offshore and Arctic Engineering Volume 3: Materials Technology; Pipelines, Risers, and Subsea Systems.The American Society of Mechanical Engineers (ASME).
ISBN 978-0-7918-8587-1.
Atteya, Mostafa Ahmed; Mikkelsen, Ove; Wintle, John; Ersdal, Gerhard
(2021)
Experimental and numerical study of the elastic SCF of tubular joints.Materials.
ISSN 1996-1944.
Volum 14.
Hefte 15.
DOI: 10.3390/ma14154220
Sigvaldsen, Marie; Ersdal, Gerhard; Markeset, Gro; Samarakoon, Mudiyansele Samindi Manjula K; Langeteig, Magne
(2021)
Capacity of Concrete Structures with Corroded Reinforcement and Prestressing Tendons.IOP Conference Series: Materials Science and Engineering.
ISSN 1757-8981.
Volum 1201.
Atteya, Mostafa Ahmed; Mikkelsen, Ove; Oma, Narve; Ersdal, Gerhard
(2021)
Residual strength of tubular columns with localized thickness loss. I: ASME 2021 40th international conference on ocean, offshore and arctic engineering : Volume 3: Materials technology.The American Society of Mechanical Engineers (ASME).
ISBN 9780791885130.
Atteya, Mostafa Ahmed; Mikkelsen, Ove; Pavlou, Dimitrios; Ersdal, Gerhard
(2020)
Crack arresting with crack deflecting holes in steel plates. I: ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering - Volume 3: Materials Technology.The American Society of Mechanical Engineers (ASME).
ISBN 978-0-7918-8434-8.
Moan, Torgeir; Amdahl, Jørgen; Ersdal, Gerhard
(2019)
Assessment of ship impact risk to offshore structures - New NORSOK N-003 guidelines.Marine Structures.
ISSN 0951-8339.
Volum 63.
s.480-494.
Ersdal, Gerhard; Sharp, John; Stacey, Alexander
(2019)
Ageing and life extension of offshore structures : The challenge of managing structural integrity.
Wiley-Blackwell.
ISBN 9781119284390.
Vo, Tri Minh; Hestholm, Kristoffer; Ersdal, Gerhard; Oma, Narve; Sivertsvik, Matias
(2019)
Buckling capacity of simulated patch corroded tubular columns – laboratory tests.IOP Conference Series: Materials Science and Engineering.
ISSN 1757-8981.
Volum 700.
Hefte 1.
Neeraas, Håkon; Ersdal, Gerhard; Oma, Narve; Hellevig, Nils-Christian
(2019)
Inspection planning for fatigue cracks in offshore structures by Monte Carlo simulations.IOP Conference Series: Materials Science and Engineering.
ISSN 1757-8981.
Volum 700.
Hefte 1.
Ersdal, Gerhard; Oma, Narve
(2019)
Investigation of updating methods for probability-informed inspection planning for offshore structures.IOP Conference Series: Materials Science and Engineering.
ISSN 1757-8981.
Volum 700.
Hefte 1.
Ersdal, Gerhard
(2017)
Safety Barriers in Structural and Marine Engineering. I: ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering - Volume 9: Offshore Geotechnics; Torgeir Moan Honoring Symposium .The American Society of Mechanical Engineers (ASME).
ISBN 978-0-7918-5777-9.
Sæstad, Alexander; Ersdal, Gerhard; Siriwardane , S.A. Sudath C.
(2016)
Comparison of Deterministic and Probabilistic Fatigue Assessment Methods: A Case Study of a Road Bridge. I: 19th Congress of IABSE, Challenges in Design and Construction of an Innovative and Sustainable Built Environment.
International Association for Bridge and Structural Engineering.
ISBN 978-3-85748-144-4.
s.275-283.
Tharaldsen, Jorunn Elise; Wiig, Siri; Østnes, Hilde Karin; Ersdal, Gerhard; Hinderaker, Rolf H.; Lootz, Elisabeth; Knudsen, Sigve; Hanson, Bjørn Andreas; Dybvig, Gunnar; Lauridsen, Øyvind
(2013)
A System Perspective on Organizational Learning. I: SPE European HSE Conference and Exhibition - Health, Safety, Environment and Social Responsibility in the Oil &Gas Exploration, Apr 16 - 18, 2013 2013, London, United Kingdom.Society of Petroleum Engineers.
ISBN 978161399256-2.
DOI: 10.2118/164999-MS
Wiig, Siri; Ersdal, Gerhard; Guldbrandsen, Tone; Hanson, Bjørn Andreas; Tharaldsen, Jorunn Elise; Dybvig, Gunnar; Dahle, Irene Bergljot
(2012)
Major accidents and their consequences for risk regulation. I: Advances in Safety, Reliability and Risk Management - proceedings of the European Safety and Reliability Conference, ESREL 2011.
CRC Press.
ISBN 978-0-415-68379-1.
s.33-41.
Hörnlund, Erik; Ersdal, Gerhard; Hinderaker, Rolf H.; Johnsen, Roy; Sharp, John M.
(2011)
Material Issues in Ageing and Life Extension (OMAE2011-49363). I: 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011) - Vol. III.
The American Society of Mechanical Engineers (ASME).
ISBN 978-0-7918-4435-9.
s.261-267.
Håbrekke, Solfrid; Bodsberg, Lars; Hokstad, Per; Ersdal, Gerhard
(2011)
Issues for Consideration in Life Extension and Managing Ageing Facilities. I: 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011) - Vol. III.The American Society of Mechanical Engineers (ASME).
ISBN 978-0-7918-4435-9.
s.173-182.
Ersdal, Gerhard; Aven, Terje
(2008)
Risk informed decision-making and its ethical basis.Reliability Engineering & System Safety.
ISSN 0951-8320.
Volum 93.
Hefte 2.
s.197-205.
Ersdal, Gerhard; Aven, Terje
(2008)
Risk management and its ethical basis.
Reliability Engineering & System Safety.
ISSN 0951-8320.
Volum 92.
Hefte 2.
s.197-205.
Bøker og kapitler
Pavlou, Dimitrios; Correia, José A.F.O.; Fazeres-Ferradosa, Tiago; Gudmestad, Ove Tobias; Siriwardane , Sudath C.; Lemu, Hirpa G.; Ersdal, Gerhard; Liyanage, Jayantha Prasanna; Hansen, Vidar Folke; Minde, Mona Wetrhus; RATNAYAKE MUDIYANSELAGE, Chandima; Delimitis, Andreas; El-Thalji, Idriss; Adasooriya, Mudiyan Nirosha Damayanthi; Samarakoon, Samarakoon Mudiyansele Samindi; Hemmingsen, Tor
(2024)
Analytical and experimental methods in mechanical and civil engineering : Contributions of the 1st olympiad in engineering science (OES 2023).
Springer Nature.
ISBN 978-3-031-49722-3.
Volum 28.
Hefte ..
Salama, Mamdouh M.; Stacey, Alexander; Ersdal, Gerhard
(2022)
Ageing and life extension of offshore facilities : Proceedings of the ASME 2021 International conference on asset integrity management .
The American Society of Mechanical Engineers (ASME).
ISBN 9780791885789.
Salama, Mamdouh M.; Stacey, Alexander; Ersdal, Gerhard
(2022)
Ageing and Life Extension of Offshore Facilities - Front matter. I: Ageing and life extension of offshore facilities : Proceedings of the ASME 2021 International conference on asset integrity management .The American Society of Mechanical Engineers (ASME).
ISBN 9780791885789.
DOI: 10.1115/1.885789_fm
Sharp, John V; Ersdal, Gerhard
(2021)
Underwater Inspection and Repair for Offshore Structures.
John Wiley & Sons.
ISBN 9781119633792.
Aven, Terje; Ersdal, Gerhard
(2005)
Risk management and its ethical basis.
Formidling
Ersdal, Gerhard
(2022)
Inspection and Repair: Introduction . I: Ageing and life extension of offshore facilities : Proceedings of the ASME 2021 International conference on asset integrity management .The American Society of Mechanical Engineers (ASME).
ISBN 9780791885789.
Salama, Mamdouh M.; Stacey, Alexander; Ersdal, Gerhard
(2022)
Remaining Technical Gaps . I: Ageing and life extension of offshore facilities : Proceedings of the ASME 2021 International conference on asset integrity management .The American Society of Mechanical Engineers (ASME).
ISBN 9780791885789.
Ersdal, Gerhard; Aven, Terje
(2022)
Commentary on: “The ethical dilemmas of risky decisions” by Ben J.M. Ale, David H. Slater, and Des N.D. Hartford.Risk Analysis.
ISSN 0272-4332.
DOI: 10.1111/risa.13920
Atteya, Mostafa Ahmed; Mikkelsen, Ove; Pavlou, Dimitrios; Ersdal, Gerhard
(2020)
Crack Arresting With Crack Deflecting Holes in Steel Plates.
ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering ;
2020-08-03 - 2020-08-07.
Moan, Torgeir; Amdahl, Jørgen; Ersdal, Gerhard
(2016)
Assessment of ship impact risk to offshore structures - new NORSOK N-003 guidelines.
The 3rd Offshore Structural Reliability Conference OSRC2016;
2016-09-14 - 2016-09-16.
Ersdal, Gerhard; Haleem, Hesham; Ratnayake, R.M. Chandima
(2015)
Panel Discussion: Extending the Life of Aging Assets in the North Sea and Around the Globe.
Asset Integrity Management Stavanger;
2015-02-11 - 2015-02-12.
Ersdal, Gerhard; Sharp, John; Galbraith, David
(2014)
LESSONS LEARNED FROM AUDITING STRUCTURAL INTEGRITY MANAGEMENT.
OMAE2014;
2014-06-08 - 2014-06-13.
Ersdal, Gerhard; Sharp, John; Galbraith, David
(2014)
Ageing accidents – suggestion for a definition and examples from damaged platforms.
OMAE 2014;
2014-06-08 - 2014-06-13.
Ersdal, Gerhard; Kübler, Oliver; Faber, Michael H; Sørensen, John Dalsgaard; Haver, Sverre; Langen, Ivar
(2004)
Economic Optimal Reserve Strength for a Jacket Structure.
ASRANet International Colloquium;
2004-07-05 - 2004-07-07.
Ersdal, Gerhard; Sørensen, John Dalsgaard; Langen, Ivar
(2003)
Updating of structural failure probability based on experienced wave loading.
The Thirteenth (2003) International Offshore and Polar Engineering Conference;
2003-05-25 - 2003-05-30.
Ersdal, Gerhard; Langen, Ivar
(2002)
On Assessment of Existing Offshore Structures.
The Twelfth (2002) International Offshore and Polar Engineering Conference;
2002-05-26 - 2002-05-31.