Study on drilling characteristics and mechanical properties of CFRP composites

Stacking plates of CFRP composite materials are increasingly used because of their unique characteristics. However, unlike other materials used in metallurgy they have a disadvantage of uneven quality and anisotropy when combined with other composites. Hence, specimens of CFRP stacking plates are manufactured by changing orientation angles throughout three quasi-isotropic plies (0°/45°/90°/−45°)6s, (03°/453°/903°/−453°)2s, and (06°/456°/906°/−456°)s and throughout three cross plies (0°/90°/0°/90°)6s, (03°/903°/03°/903°)2s, and (06°/906°/06°/906°)s. In this study 3-point bending tests and transverse bending tests have been carried out in order to find out mechanical characteristics according to orientation angles by stacking in 6 different types along with the change of stacking composition method of a CFRP composite.