The shoulder is the most complicated joint complex and delicate of the entire human body . Its movement is related to the coordinate function of 5 different joints , which make it unstable . This instability results in the possibility of incurring in several diseases such as , among the most important , the dislocations is of type humeral bachelor ( 85 % of cases ) and acromion -clavicular ( 15 % of cases ) , which are found both in the workplace and everyday but occur mostly in sports with a higher incidence in sports with physical contact such as basketball , soccer, wrestling , rugby and football.
The Polypropylene polymer mixed with curved fibers was injected into rectangular mold in order to improve its thermoplastic properties. The aim of this study is to investigate the effect of fibers orientation. The prediction of the orientation of short fibers within the polymer matrix was obtained by image processing method based on the method that determines ellipses orientation and size of fibers from a scanned image and then the results obtained were validated by ImageJ.