What is the angle of the warp fibers of each layer of material when creating a composite component?

The term "ply orientation" refers to the arrangement of the fibers within each layer of a composite material, specifically their angle relative to a reference axis. In the context of composite components, the ply orientation is crucial because it directly affects the mechanical properties, strength, and performance characteristics of the final product. Different orientations can be utilized to achieve desired stress responses or flexural properties, depending on the application of the composite.

In contrast, while the other terms may seem relevant, they are less specific to the context of composite materials. "Fiber angle" is a more general term that might not apply specifically to the layered structure, and "layer angle" is not commonly used in composite terminology. "Bending angle" pertains to the angle created when a material is bent, which does not accurately reflect the concept of fiber orientation in composite fabrication. Thus, ply orientation is the most precise term, making it the correct answer for this question.