Özet:

This study aimed to administer hand lay-up method for designing composite materials in which unidirectional and biaxial carbon fiber reinforcements are placed in a polyester matrix to generate one, two and three layers at room temperature. The samples were laid up from composite plates with the help of a mold in accordance with the fiber direction angle in accordance with the standards. In order to determine the mechanical properties of the samples, tensile, bending and drop weight low velocity impact tests were performed. The tensile test results in composite materials with the same layer number, pointed out that 00 unidirectional fiber reinforced composite materials performed the highest tensile strength values. On the other hand, the biaxial carbon fiber reinforced composite materials had the highest elasticity values of ±450. The highest elasticity values have been found in the unidirectional carbon fiber reinforcements of composite materials with 00 fiber direction angle in terms of bending test results. The biaxial composite materials with a ±450 fiber direction angle showed the highest values of impact tensile strength in drop weight low velocity impact tests. 00 unidirectional fiber reinforced composite materials, which showed the highest elasticity values in tensile and bending tests, were found to be the composite materials with the highest deformation values in the falling weight low velocity impact tests. It appears that increasing the number of layers caused an increase in the impact strength. They can be an alternative to aluminum and glass fiber reinforced polyester matrix composite materials due to their lightness and strength at the same thickness, which is valuable in boats, caravans and design cars.

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