Fiber-filled plastic materials are commonly used in metal replacement applications. The combination of low weight and high stiffness makes fiber-filled plastics ideal for high-performance applications. The key to unlocking the potential of these plastics lies in the orientation of the fibers. The orientation direction and the degree of orientation of the fibers determine the mechanical properties of the molded part. The injection moluding process for fiber-filled parts can cause great
variation in strength throughout a part, the effects of the injection process should be considered in the design of such a part.