FESI–IOM3 2021 Lecture 4

Improving materials to provide longer service, fewer inspections and reduced operational costs

Engineering structural integrity brings together the fields of materials science, structural engineering and many other disciplines to analyse whether a structure is fit for purpose. This could be anything that experiences loading during use, from a complex, multi-component structure like a bridge to a single component such as a bolt. FESI is pleased to be collaborating with IoM3 on this suite of lectures which highlight some of the latest developments and demonstrate the importance of structural integrity.

Speakers

Professor Feargal Brennan and Dr Ali Mehmanparast
Prof Feargal Brennan is the Director of the Offshore Engineering Institute, and Head of Naval Architecture, Ocean & Marine Engineering Department at University of Strathclyde. He is a leading authority on the development and assessment of offshore Oil & Gas installations and renewables including wind, wave and tidal stream. Prof Brennan is the director of the REMS CDT, research director of the Supergen ORE Hub and was the technical lead of the SLIC JIP. He, has for twenty-five years, been at the forefront of internationally leading research in structural integrity and its application to ships, offshore renewables and the oil & gas sector.

Dr Ali Mehmanparast (PhD, MBA, CEng, CMgr) is a Senior Lecturer in Structural Integrity at Cranfield University. He has won and led research projects for the Rutherford Appleton Laboratory, EPSRC-funded Supergen Wind and Supergen ORE Hubs and the Carbon Trust Offshore Wind Accelerator (OWA) Programme. He is the Co-I and Manager of the REMS CDT and participated in the SLIC JIP as a member of the technical delivery team.

Subject

An efficient source of renewable energy, which is increasingly the preferred solution for realising Britain’s short- and long-term energy ambitions, is offshore wind. While Britain is presently the global leader in offshore wind energy, the national target set by the UK government to increase the currently installed offshore wind capacity from approximately 10 GW in 2020 to 40 GW in 2030 demonstrates the strategic importance of this clean source of energy in the UK’s energy mix.

The rapid expansion of the offshore wind capacity will not only escalate UK’s position in this emerging market, but will also significantly contribute to the UK’s world-leading net-zero greenhouse gas emissions target by 2050. Offshore wind turbines (OWTs) are typically designed for 20-25 years of operation. One of the main challenges in the design and life assessment of OWTs is the evolution of corrosion-fatigue damage due to the constant exertion of wind, wave and current forces in the highly corrosive environments. The aim of this talk is to present the materials and structural integrity challenges associated with the currently installed and future generation of OWTs, with the view to maximise the operational life, reduce the number of frequent inspections and deliver a direct beneficial impact on Operations and Maintenance (O&M) costs.