Fatigue testing experimentation of a composite blade prototype of 712 mm in length

In this article, the performance of the composite materials of a blade prototype in terms of stiffness and mechanical strength by applying a set of load levels in the direction of flapwise loading in order to quantify and characterize the degradation of stiffness structure as a function of loading rate and number of cycles. In this concordance, a test bench was designed in CATIA V5 and manufactured and assembled in our laboratory in order to test the blade of 712 mm in length in bending to characterize the structure in terms of fatigue resistance, damage tolerance and several propositions to improve the overall blade composite structure. In fact, a bench have been designed and manufactured to test the mechanical charactristics of the blade composite structure. The results would be obtained used this experimental strategy is performed in this brief review. The mechanical testing of the blade is performed in the case of secure and structural health of the blades during the blade manufacturing. The validation of our experimental results are performed based on our previous studies of numerical simualtions of a blade composite materials of 2.5 m in length.