Gerhard Ersdal

Gerhard Ersdal (2024) Risk-informed decision-making for assessment of existing structures. I: Dimitrios Pavlou; Sudath C. Siriwardane; Gerhard Ersdal; Vidar Folke Hansen; Samarakoon Mudiyansele Samindi Samarakoon; Ove Tobias Gudmestad; Chandima RATNAYAKE MUDIYANSELAGE; Hirpa G. Lemu; Andreas Delimitis; Idriss El-Thalji; Tiago Fazeres-Ferradosa; Jayantha Prasanna Liyanage; Mona Wetrhus Minde; José A.F.O. Correia; Mudiyan Nirosha Damayanthi Adasooriya; Tor Hemmingsen, Analytical and experimental methods in mechanical and civil engineering : Contributions of the 1st olympiad in engineering science (OES 2023). Springer Nature. ISBN 9783031497223. s.146-165. DOI: 10.1007/978-3-031-49723-0_11

Ove Mikkelsen; Gerhard Ersdal; Sudath C. Siriwardane ; Mostafa Ahmed Atteya (2023) Crack Arresting using Cutout Repair in Tubular Offshore Joints. Universitetet i Stavanger. ISBN 9788284391915.

Gerhard Ersdal; Mostafa Ahmed Atteya; Ove Mikkelsen (2023) Statistical evaluation of tubular joint SCFs from test data and finite element analyses. I: IOP Conference Series: Materials Science and Engineering. ISSN 1757-8981. DOI: 10.1088/1757-899X/1294/1/012033

Simen Riise; Mostafa Ahmed Atteya; Ove Mikkelsen; Gerhard Ersdal (2023) Experimental assessment of cracked tubular joints repaired with crack-deflecting holes and weld-toe grinding. I: IOP Conference Series: Materials Science and Engineering. ISSN 1757-8981. Volum 1294. DOI: 10.1088/1757-899X/1294/1/012032

Gerhard Ersdal; Terje Aven (2022) Commentary on: “The ethical dilemmas of risky decisions” by Ben J.M. Ale, David H. Slater, and Des N.D. Hartford. I: Risk Analysis. ISSN 0272-4332. DOI: 10.1111/risa.13920

John Sharp; Mamdouh M. Salama; Gerhard Ersdal; Alexander Stacey (2022) Life extension and integrity management of ageing pipelines. I: Mamdouh M. Salama; Alexander Stacey; Gerhard Ersdal, 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. DOI: 10.1115/1.885789_ch17

John Sharp; Gerhard Ersdal (2022) Overvview of Underwater Inspection and Repair for Ageing Offshore Structures. I: Mamdouh M. Salama; Alexander Stacey; Gerhard Ersdal, 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. DOI: 10.1115/1.885789_ch22

John O'Malley; Andreas Lervik; Tim Wiley; Gerhard Ersdal (2022) Inspection and Maintenance of Ageing Concrete Oil and Gas Structures on the Norwegian Continental Shelf. I: Mamdouh M. Salama; Alexander Stacey; Gerhard Ersdal, 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_ch25

Gerhard Ersdal; Marita Halsne; Narve Oma; Terje L Andersen; Morten Andre Langøy; Lars Geir Bjørheim (2022) Semisubmersible in Service Experiences on the Norwegian Continental Shelf. I: . ASME, 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 9780791885871. DOI: 10.1115/OMAE2022-81289

Arne Fjeldstad; Einar Landet; Lars Geir Bjørheim; Gerhard Ersdal (2022) Repair Methods for Loadbearing Steel Structures Operating on the Norwegian Continental Shelf. I: Mamdouh M. Salama; Alexander Stacey; Gerhard Ersdal, 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_ch26

Alexander Stacey; Gerhard Ersdal (2022) Structural Integrity Management of Ageing Offshore Structures: A Regulatory Perspective. I: Mamdouh M. Salama; Alexander Stacey; Gerhard Ersdal, 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

Mostafa Ahmed Atteya; Ove Mikkelsen; John Wintle; Gerhard Ersdal (2021) Experimental and numerical study of the elastic SCF of tubular joints. I: Materials. Online ISSN 1996-1944. Volum 14. DOI: 10.3390/ma14154220

Mostafa Ahmed Atteya; Ove Mikkelsen; Narve Oma; Gerhard Ersdal (2021) Residual strength of tubular columns with localized thickness loss. I: Digital Collection ASME, ASME 2021 40th international conference on ocean, offshore and arctic engineering : Volume 3: Materials technology. The American Society of Mechanical Engineers (ASME). ISBN 9780791885130. DOI: 10.1115/OMAE2021-62213

Marie Sigvaldsen; Gerhard Ersdal; Gro Markeset; Mudiyansele Samindi Manjula K Samarakoon; Magne Langeteig (2021) Capacity of Concrete Structures with Corroded Reinforcement and Prestressing Tendons. I: IOP Conference Series: Materials Science and Engineering. ISSN 1757-8981. Volum 1201. DOI: 10.1088/1757-899X/1201/1/012052

Mostafa Ahmed Atteya; Ove Mikkelsen; Dimitrios Pavlou; Gerhard Ersdal (2020) Crack arresting with crack deflecting holes in steel plates. I: NN NN, ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering - Volume 3: Materials Technology. The American Society of Mechanical Engineers (ASME). ISBN 9780791884348. DOI: 10.1115/OMAE2020-19358

Tri Minh Vo; Kristoffer Hestholm; Gerhard Ersdal; Narve Oma; Matias Sivertsvik (2019) Buckling capacity of simulated patch corroded tubular columns – laboratory tests. I: IOP Conference Series: Materials Science and Engineering. ISSN 1757-8981. Volum 700. DOI: 10.1088/1757-899X/700/1/012029

Håkon Neeraas; Gerhard Ersdal; Narve Oma; Nils-Christian Hellevig (2019) Inspection planning for fatigue cracks in offshore structures by Monte Carlo simulations. I: IOP Conference Series: Materials Science and Engineering. ISSN 1757-8981. Volum 700. DOI: 10.1088/1757-899X/700/1/012030

Gerhard Ersdal; Narve Oma (2019) Investigation of updating methods for probability-informed inspection planning for offshore structures. I: IOP Conference Series: Materials Science and Engineering. ISSN 1757-8981. Volum 700. DOI: 10.1088/1757-899X/700/1/012034

Gerhard Ersdal; John Sharp; Alexander Stacey (2019) Ageing and life extension of offshore structures : The challenge of managing structural integrity. Wiley-Blackwell. ISBN 9781119284390.

Torgeir Moan; Jørgen Amdahl; Gerhard Ersdal (2019) Assessment of ship impact risk to offshore structures - New NORSOK N-003 guidelines. I: Marine Structures. ISSN 0951-8339. Volum 63. s.480-494. DOI: 10.1016/j.marstruc.2017.05.003

Gerhard Ersdal (2017) Safety Barriers in Structural and Marine Engineering. I: NN NN, 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 9780791857779. DOI: 10.1115/OMAE2017-62712

Alexander Sæstad; Gerhard Ersdal; S.A. Sudath C. Siriwardane (2016) Comparison of Deterministic and Probabilistic Fatigue Assessment Methods: A Case Study of a Road Bridge. I: Mats Karlsson, 19th Congress of IABSE, Challenges in Design and Construction of an Innovative and Sustainable Built Environment. International Association for Bridge and Structural Engineering. ISBN 9783857481444. s.275-283.

Jorunn Elise Tharaldsen; Siri Wiig; Hilde Karin Østnes; Gerhard Ersdal; Rolf H. Hinderaker; Elisabeth Lootz; Sigve Knudsen; Bjørn Andreas Hanson; Gunnar Dybvig; Øyvind Lauridsen (2013) A System Perspective on Organizational Learning. I: . Society of Petroleum Engineers, 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 9781613992562. DOI: 10.2118/164999-MS

Siri Wiig; Gerhard Ersdal; Tone Guldbrandsen; Bjørn Andreas Hanson; Jorunn Elise Tharaldsen; Gunnar Dybvig; Irene Bergljot Dahle (2012) Major accidents and their consequences for risk regulation. I: Christophe Bérenguer; Antoine Grall; Carlos Guedes Soares, Advances in Safety, Reliability and Risk Management - proceedings of the European Safety and Reliability Conference, ESREL 2011. CRC Press. ISBN 9780415683791. s.33-41.

Solfrid Håbrekke; Lars Bodsberg; Per Hokstad; Gerhard Ersdal (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 9780791844359. s.173-182. DOI: 10.1115/omae2011-49261

Erik Hörnlund; Gerhard Ersdal; Rolf H. Hinderaker; Roy Johnsen; John M. Sharp (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 9780791844359. s.261-267.

Gerhard Ersdal; Terje Aven (2008) Risk informed decision-making and its ethical basis. I: Reliability Engineering & System Safety. ISSN 0951-8320. Volum 93. s.197-205. DOI: 10.1016/j.ress.2006.12.018

Gerhard Ersdal; Terje Aven (2008) Risk management and its ethical basis. I: Reliability Engineering & System Safety. ISSN 0951-8320. Volum 92. s.197-205.

Dimitrios Pavlou; José A.F.O. Correia; Tiago Fazeres-Ferradosa; Ove Tobias Gudmestad; Sudath C. Siriwardane; Hirpa G. Lemu; Gerhard Ersdal; Jayantha Prasanna Liyanage; Vidar Folke Hansen; Mona Wetrhus Minde; Chandima RATNAYAKE MUDIYANSELAGE; Andreas Delimitis; Idriss El-Thalji; Mudiyan Nirosha Damayanthi Adasooriya; Samarakoon Mudiyansele Samindi Samarakoon; Tor Hemmingsen (2024) Analytical and experimental methods in mechanical and civil engineering : Contributions of the 1st olympiad in engineering science (OES 2023). Springer Nature. ISBN 9783031497223.

Mamdouh M. Salama; Alexander Stacey; Gerhard Ersdal (2022) Ageing and Life Extension of Offshore Facilities - Front matter. I: Mamdouh M. Salama; Alexander Stacey; Gerhard Ersdal, 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

Gerhard Ersdal (2022) Inspection and Repair: Introduction. I: Mamdouh M. Salama; Alexander Stacey; Gerhard Ersdal, 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_pt5.i1

Mamdouh M. Salama; Alexander Stacey; Gerhard Ersdal (2022) Remaining Technical Gaps. I: Mamdouh M. Salama; Alexander Stacey; Gerhard Ersdal, 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_pt6.i1

Mamdouh M. Salama; Alexander Stacey; Gerhard Ersdal (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. DOI: 10.1115/1.885789

John V Sharp; Gerhard Ersdal (2021) Underwater Inspection and Repair for Offshore Structures. John Wiley & Sons. ISBN 9781119633792.

Terje Aven; Gerhard Ersdal (2005) Risk management and its ethical basis.

Mostafa Ahmed Atteya; Ove Mikkelsen; Dimitrios Pavlou; Gerhard Ersdal (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.

Torgeir Moan; Jørgen Amdahl; Gerhard Ersdal (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.

Gerhard Ersdal; Hesham Haleem; R.M. Chandima Ratnayake (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.

Gerhard Ersdal; John Sharp; David Galbraith (2014) LESSONS LEARNED FROM AUDITING STRUCTURAL INTEGRITY MANAGEMENT. OMAE2014; 2014-06-08 - 2014-06-13.

Gerhard Ersdal; John Sharp; David Galbraith (2014) Ageing accidents – suggestion for a definition and examples from damaged platforms. OMAE 2014; 2014-06-08 - 2014-06-13.

Gerhard Ersdal; Oliver Kübler; Michael H Faber; John Dalsgaard Sørensen; Sverre Haver; Ivar Langen (2004) Economic Optimal Reserve Strength for a Jacket Structure. ASRANet International Colloquium; 2004-07-05 - 2004-07-07.

Gerhard Ersdal; John Dalsgaard Sørensen; Ivar Langen (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.

Gerhard Ersdal; Ivar Langen (2002) On Assessment of Existing Offshore Structures. The Twelfth (2002) International Offshore and Polar Engineering Conference; 2002-05-26 - 2002-05-31.