Abstract
A new model for calculating the damping capacity of particulate—reinforced metal matrix composites (PMMCs) is proposed from the viewpoint of energy dissipation. Finite element method (FEM) has been employed to investigate the effect of interphase on the damping capacity of composite by varying the thickness and material properties of interphase region. The calculated results show that the damping of composites containing the elastic interphase increases with the elastic modulus. For the case of plastic interphase, the weak interphase or the hard interphase is beneficial to improve the overall damping of composites.
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