Development of High Strength, High Fatigue Wind Blade Spars

The size of the latest generation of wind turbines is outstripping the capabilities of the materials and techniques used to manufacture them. As wind turbines are made larger to improve efficiency, composites with improved mechanical properties and long tern performance are required to avoid premature field failures. Further as wind turbines are produced in ever greater numbers, faster more consistent manufacturing techniques are required. The work proposed in this SBIR will demonstrate the feasibility of a novel composite and manufacturing method which combines higher strength, improved fatigue resistance and the possibility to significantly increase manufacturing throughput. . Commercial Applications and Other Benefits: The proposed new composite will enable larger, more efficient wind blades to be produced, aiding the safe rapid expansion of one of the most cost effective forms of alternative energy