Abstract
This paper presents a procedure for the calculus and dimensional optimization using finite elements analysis of a polymeric retractable rod which replaces a metallic one. This rod is an element of the front auger embedded in a technological equipment. The mechanism is 3D modeled in SolidWorks. CosmosMotion is then used to simulate and analyze the motion of the mechanism and to calculate the loads acting on the rod during its movement. These loads are then exported in CosmosWorks – a finite elements analysis software – which is used here to perform stress analysis and to optimize the retractable rod’s dimensions. Keywords: polymers, optimization, finite elements analysis