An Analysis and Experimental Study of the Rotor Blade with Composite Material Fiber Reinforced Plastics

Abstract

In these days, large-scale wind turbines are being made of the Glass Fiber Reinforced Plastic (hereinafter F.R.P). Some reinforcement stiffeners such as carbon fiber and polyamide (Kevlar) are not economical for the wind turbine. In addition, the steel or aluminum alloy, featuring heavy weight and metallic fatigue load, is not suitable for global use, except very small-scale wind turbines. In this study, we manufactured a 10kW-grade small Rotor Blade with the F. R. P featuring high stiffness and good dynamic behavior characteristic, and carried out experiments for understanding the bending behavior characteristic of the fatigue load and bending load. And, we examined the experiment results through the Finite Element Method. We compared the experiment results and FEM analysis outputs using the commercial ANSYS FEM program.

Mathematical Models for Calculation of Crack Resistance of Composite Materials

“…Nowadays, composite materials are widely used in various branches of industry: mechanical engineering; automobile engineering; aircraft engineering; shipbuilding, etc. [1][2][3][4][5][6][7][8][9].…”