Structural Integrity Assessment of Offshore Wind Turbine Foundations

5th February 2021 - 09:30-12:30 GMT

Given the harsh environment of offshore wind turbines, a major design and O&M challenge is the corrosion and fatigue of the structure. This webinar is designed to give attendees a more rounded appreciation of the unique considerations that should be given to the structural integrity assessment of offshore wind turbine foundations.

Several areas will be covered including:

​1. Fatigue crack initiation and growth in offshore structures
A brief introduction to S-N curves, Linear Elastic Fracture Mechanics, Stress intensity factor

2. Defect assessment using failure assessment diagrams
Life prediction of cracked components and structures using level I, II and III FADs

3. Fracture mechanics based inspection
Paris law, Fatigue crack length estimation and inspection using the Paris law

4. Corrosion-fatigue testing and analysis of offshore monopile weldments
An introduction to corrosion-fatigue testing and analysis, Environmental Reduction Factor, Estimation of crack growth acceleration in free-corrosion environment, Demonstration of a case study: SLIC Joint Industry Project

5. Welding residual stresses in offshore wind monopiles
Residual stress measurement using destructive and non-destructive techniques, welding sequence effects on residual stress distribution in offshore wind monopiles, residual stress effects on fatigue crack initiation and propagation, demonstration of a case study: residual stress measurements in monopile weldments using neutron diffraction and contour techniques

Presenter
Ali Mehmanparast

Dr Ali Mehmanparast (PhD, MBA, CEng, CMgr) is a Senior Lecturer in Structural Integrity at Cranfield University. Ali sits on the Engineering Integrity Society (EIS) Durability and Fatigue committee, the UK Forum for Engineering Structural Integrity (FESI Council) and is a member of the European Structural Integrity Society (ESIS). He is a Chartered

Engineer of IMechE, fellow of The Higher Education Academy and fellow of the Chartered Management Institute. He has more than 80 peer reviewed journal and conference papers in the field of engineering structural integrity, and has organised and chaired technical sessions at international conferences. Ali has an extensive track record in structural integrity assessment of high temperature components by developing accelerated testing techniques and advanced numerical modelling approaches. He is currently the editor of the Elsevier book “Comprehensive Structural Integrity-Volume 5: Creep and High-temperature Failure”, 2nd Edition.

Cerfiticate

Attendance certificates are available on request after the completion of the webinar.

Price

The cost of registering for this webinar will be £90+VAT​.

If you would like to register and pay now, please click the button below "Register Now". If you would prefer an invoice (for VAT exemptions/ purchase order requirement etc...) please click the button "send me an invoice" and complete the registration form, and our admin team will be in touch.

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