Three dimensional finite element simulation of monopiles for offshore wind turbines using the HySand constitutive model
Three dimensional finite element simulation of monopiles for offshore wind turbines using the HySand constitutive model
The three-dimensional (3D) finite element (FE) method is routinely employed for designing and analysing monopile foundations for offshore wind turbines (OWT). However, reliable simulations require advanced soil constitutive models to capture accurately complex soil-foundation interactions under both monotonic and cyclic loading. This study investigates the application of the advanced sand model "HySand" to predict the behaviour of laterally loaded monopiles for OWT foundations using 3D FE simulations. HySand, an effective stress model based on hyperplasticity theory, simulates sand behaviour across various densities and confinement pressures under monotonic and cyclic, drained and undrained conditions. The model is first calibrated using laboratory soil test data, and its predictions are validated against these results. Following calibration, HySand is implemented into the ABAQUS FE code to evaluate its performance in simulating monopile responses. Monopiles of different geometries are modelled, and their force-displacement responses under varying soil densities and loading conditions, including monotonic and loading-unloading-reloading cycles, are analysed.
Miad Saberi; Luc Simonin; Guy Houlsby; Byron W. Byrne
5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG2025)
9 - Monopile design to cyclic loads: quasi-static, dynamic and seismic loads
https://doi.org/10.53243/ISFOG2025-301
Contact Information
- Secretary General - Dr A M McNamara
- Email: [email protected]
- Phone: +44 20 7040 8154
- City, University of London
- Northampton Square
- London EC1V 0HB. United Kingdom