A method of strengthening a wind turbine blade and the strengthened blade

摘要

A method of strengthening a wind turbine blade (2) is described. The blade (2) comprises a shell body comprising a fibre-reinforced polymer material. The blade (2) is strengthened by use of a UV curable prepreg material (250) having a first side (337) and a second side (339). The method comprises the steps of: a) applying the UV curable, fibre-reinforced prepreg material (250) to an area of application on an outer surface or an inner surface of the wind turbine blade (2) with the first side (337) of the prepreg material (250) facing the area of application, and b) exposing the prepreg material to UV radiation for a predetermined amount of time so as to allow the prepreg to cure.