DETERMINA TION OF THE AMPLITUDE DEPENDENCE OF INTERNAL FRICTION DURING TORSIONAL VIBRATIONS OF A POROUS METAL COMPOSITE
The paper proposes a method for calculating the amplitude dependence of the torsional vibration decrement of a round sample of a porous metal composite made using 3D technologies. The results of the theoretical calculation allow us to determine the role of microplasticity zones that occur in the vicinity of the pores, as well as the porosity of the matrix on the internal friction in the sample.