No abstract

No abstract

The formulation of a new mathematical model of deformed viscoelastic composite is shown in the work. The method of constructing a model is based on commonality problems of determining the effective modules of inhomogeneous elastic composites and viscoelastic bodies, which demonstrate the dependence of the mechanical properties from the duration of load action. Mathematical model of hybrid efficient modules has been constructed on the superposition of expressions for known effective modules of Voigt and Reuss, Hashin and Shtrikman. The new model summarizes the properties of classical approximate approaches. We have shown that the calculations of stress-strain state with the help of new effective characteristics provide a more accurate prediction in comparison with known models.

Abstract:The features of the kinematics of devices performing orbital displacements are considered. Different versions of the arrangement of mechanisms for the orbital movement of a digital radiographic scanner are compared. The load capacity of the support flexible joint of the mechanism was estimated.

Abstract.The results of mechanical testing of plastic samples, produced by injection molding and 3D printing are shown. Strength properties of filled and non-filled polymers are compared. The applicability of 3D printing technology with filled polymer materials of external panels is evaluated.