Evaluation Of Shear Properties of Carbon Fiber Reinforced Polymer Matrix Composites Developed for Micro Wind Turbine Applications

Abstract: Composite materials are the most promising. In comparison to current conventional materials, carbon fibre reinforced composites (CFRC) offer substantial advantages to the aerospace sector. As the market's demand for lightweight, high-strength materials for specific applications develops, composites reinforced with artificial or natural fibres are becoming ever more common. In the current work, a composite material made of carbon fibre reinforced polymer matrix is being created for use in wind turbine blade application. The composites are made by hand using a lay-up approach at room temperature. When a steady force is exerted parallel to the surfaces of the tape and substrate, shear tests are used to assess an adhesive tape's endurance to creep. The following results are drawn from this experimental study of the shear stress behaviour of carbon fibre reinforced epoxy matrix composites. The ultimate shear strength improved by the addition of carbon fibre material. In case of specimen 1, the failure stress was observed to be 30.71 MPa and displacement was found to be 4.25 mm. In case of specimen 2, the failure stress was observed to be 36.95 MPa and displacement was found to be 7.81 mm. Between the two specimens, the largest deviation in failure stress is found to be 20.31%.

Keywords: Composite Material, Shear stress, Wind turbine, CFRP.