Scanning electron micrographs of long fiber reinforced thermoplastic composites were analyzed using an image processing system. The main objective of this study was to determine the alignment process which takes place during thermoforming of Long Discontinouos Fiber Composties (LDF™). The planar orientation factor and the standard deviation of the fiber cross section area were determined. Thus, an alignment process could be stated. In addition, the fiber volume fraction was calculated.
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