Prediction of the elastic properties and fatigue damage evolution in bundle-based composites for wind turbines
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Wind turbines represent a highly sustainable mean for the energy production. In the last years, the
length of rotor blades has increased to produce more power without making taller towers. In fact, for a
rotor blade of twice the length, the power output is quadrupled. Structural light-weight materials with
high specific stiffness and capable of withstanding cyclic loadings are required.
Composite materials play an important role in the rotor blade assembly. Multidirectional laminates
made from non-crimp fabrics (NCFs) are commonly used in areas like shear webs, leading edge and
trailing edge. In these materials, unidirectional bundles are held together by other fibre bundles,
characterized by a lower areal weight and different orientations
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