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Abstract: The turn of the evolution in plastics came with the development of fiber reinforcements. With the introduction of reinforcement fibers to a base resin, the mechanical properties are improved drastically, allowing for the product to be implemented in a wide range of applications. These materials were discovered to have half the weight of their metal counterparts and a tensile strength that is more than doubled. Fibers within the system are aligned in the flow direction during processing. However, with injection molding, the product undergoes a rapid cooling, causing this direction to be frozen in place, and eliciting an anisotropy. This process can be used as an advantage, for designing and implementing desirable traits in plastics.

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