Abstract
The objective of this research is to study the effect of changed the reinforcement percentage by fibers on Mechanical properties for composite material consist of phenol formaldehyde resin reinforced by biaxial kevlar fibers (0o-90o))with (485g/cm3) density which included impact strength , tensile strength , and hardness where we extracted the Mechanical properties for phenol formaldehyde resin before reinforced by fibers, then we reinforced the resin by different weight percentage from Kevlar Fibers(20%,40%,60%) and studied its effect on the above Mechanical Properties as illustrated in the diagrams .
Keywords:-Composite Material , Mechanical Properties, Phenol Formaldehyde Resin , Kevlar Fibers .
