Investitation of mobile ultrasonic propagation imager as a tool for composite wind blade quality control
According to the statistical reports, almost 50% of wind blade failures are due to manufacturing defects. Therefore, reliable nondestructive testing (NDT) methods are required to create a standard for blade manufacturing quality control that reduces maintenance costs and catastrophic accidents. Applying conventional NDT methods is currently impossible without major modifications; this would also be time-consuming because wind turbine blades are large, thick and heterogeneous composite structures.