... and analytical models. Carbon fiber laminates with ply drops, while performing adequately under static loads, delaminated in fatigue at low maximum strain levels except for the thinnest ply drops. The lower elastic modulus of the glass fiber laminates resulted in much higher strains to produce delamination...

... upon the design of the GE37a blade. wind turbines rotors blades carbon fibres weaving The United States Department of Energy has set aggressive goals for increasing the use of wind power in the US ( 1 ). In order to achieve these goals, the cost of energy (COE) must come down...

... fibers from 5° to 25° and varying the volume fraction of off-axis fibers in the spar cap from 10% to 90%. In all configurations, the remainder of the spar cap material is 0° carbon fiber. The spar cap thickness has been adjusted in each blade to simultaneously minimize the weight of carbon material...

... ACM-13-2 76 51 Epoxy 684 0.81 UNI25A UNI25 100 45 Vinyl ester 535 0.61 woven large-tow carbon Literature fatigue data 20 for small-tow carbon fiber/epoxy prepreg composites indicate much improved tensile fatigue resistance over glass fiber composites; the fatigue...