Unambiguous orientation in short fiber composites over small sampling area in a center-gated disk

A modified version of the method of ellipses was successfully developed, validated, and implemented to characterize short fiber orientation. Unambiguous orientation and a small sampling area were obtained by distinguishing between in-plane angles of ϕ and ϕ + π for every fiber and characterizing non-elliptical footprints, respectively. Measurements in two thin center-gated disks showed the existence of an asymmetric profile of orientation at the...