LIVIU MARSAVINA, ANGHEL CERNESCU, EMANOIL LINUL, DAN SCURTU, CONSTANTIN CHIRITA EXPERIMENTAL DETERMINATION AND COMPARISON OF SOME MECHANICAL PROPERTIES OF COMMERCIAL POLYMERS In the recent years the utilization of polymeric materials increased due to their good mechanical properties and easy manufacturing. Starting from automotive industry up to food industry polymeric materials are used for obtaining components by molding or by machining. Taking into account the wide range of applications, it is important to know the mechanical behaviour of these materials in different loading conditions. Accordingly, this paper presents an experimental study to determine mechanical properties on 11 commercial polymeric materials. Tensile and shear static tests and impact tests on notched and un-notched specimens were performed. The results are presented comparatively, and two new parameters were introduced for material selection purpose.