Monopile foundations for offshore wind turbines are subject to significant cyclic loading over their design life. This loading, caused by wind and waves, is highly variable, with loading concentrated in high intensity storm events. Predicting the accumulated rotations and cyclic secant stiffness changes due to these storm events is critical to designing monopiles for serviceability. An ideal modelling approach would be calibrated using routine tests, but allow time-domain predictions of the response throughout a realistic storm. This talk will cover:
- field and laboratory testing carried out to assess monopile response,
- cutting edge modelling approaches that allow time domain predictions, and
- developing a research tool into a design method usable in industry.
Dr Jamie Crispin is a lecturer at the University of Southampton developing analytical and numerical solutions to soil-structure interaction problems related to static, dynamic, and cyclic loading, with a particular focus on monopile foundations for offshore wind turbines. This research builds on his postdoctoral experience at the University of Oxford, working on the ALPACA+ and PICASO joint industry projects. These involved interpreting large-scale cyclic field tests carried out on monopile foundations, as well as developing and calibrating a model to predict the observed behaviour. Prior to this, Jamie completed his PhD at the University of Bristol on developing original analytical solutions for the static and dynamic analysis of piles and pile groups.
