Parametric Study of Accidental Impacts on an Offshore Wind Turbine Composite Blade

Wind turbine blades are the key components that allow extraction of energy from wind; these often subjected to accidental impacts which usually occurs on moving with maintenance tools, hail, or flying birds, resulting in a significant degradation structural integrity blade. In this paper, numerical simulation is adopted using finite element method (FEM) ABAQUS software investigate mechanical behavior GRP composite wind blade under low-velocity impact operating conditions. On other hand, damage modeling was formulated based Hashin criteria for intra-laminar detect failure modes large blade, sensitive zones, and size damaged areas. To situation, comparative evaluation carried out considering many scenarios main parameters such as impactor geometry, velocity, weight. The results then examined analyzed, show major appeared at tip trailing edge. Furthermore, geometry affects type damage, weight area, while velocity influences response