Method for establishing whole-lifetime digital twins of fibre-reinforced plastics in wind turbines is developed in the project SensoTwin

The project SensoTwin – Sensor-integrated Digital Twin for High-Performance FRP Applications marks the beginning of an academic cooperation between the Chair of Carbon Composites of Technical University of Munich and Deggendorf Institute of Technology focusing on a whole-lifetime material model (digital twin) of fibre-reinforced plastics (FRPs). As it is a project of the Innovation Platform MaterialDigital, SensoTwin shall drive forward the digitalisation of this material class and lead to a newly developed material ontology. Therefore, the fatigue behaviour of FRPs is experimentally characterised regarding the elasticity and strength. Subsequently, a multi-scale material model for FRPs is established. This model considers knowledge gained from the process simulation and the structural simulation to predict the operational stability of FRPs. The ontology is extended based on the model requirements and together with the material model incorporated into a newly developed software app. The utilisation of uniform data exchange formats allows for an additional feeding-in of real sensor data. The methodology is exemplarily developed for modern wind turbine components and shall potentially ease the recertification of these plants at the end of their service life.