Stress - State modelling of injection-molded cylindrical bosses reinforced with short fibres

Abstract

An investigation was carried out through a study of the influence of material anisotropy and geometrical parameters of the cylindrical bosses of plastic parts reinforced by short-fibres, on the state of stress. It has been shown that the result of such injection-moulded processes is an anisotropic product, whose mechanical behaviour differs considerably for that of classical types of isotropic solids. Unlike unreinforced plastics, fibre composites exhibit secondary stress phenomena and secondary properties in cases where composite parts are highly curved. These unusual effects of their mechanical properties thus need to be careful consideration in the course of designing a reinforced plastic parts.