Improvements to the cost/benefits ratio of wind turbine construction can come through the destructive chase of efficient designs. Longer and lighter blade designs using novel materials (e.g., fiberglass) will yield better performance [4]. Regularly reversing wind loads and blade orientation with respect to gravity issues blades to high intensity of fatigue that can have the possibility to be the root cause of a sudden failure [5]. Typically, blades experience damage requiring repair or even replacement, on average, five times per year [6], a fact that negatively affects the long- term profitability of wind turbines. Hidden damage can spread into rapid and disastrous crash. For example, an on- shore turbine has get into an unexpected blade failure Scotland in 2005, resulting in 2 millions euro in repair costs and important downtime [7].