Specific Damping Capacity of Multiphase Unidirectional Hybrid Fiber Composites

Modeling and analysis on the specific damping capacity (SDC) of a unidirectional hybrid fiber composite lamina have been presented in this paper. In an attempt to refine the SDC analysis for the case of hybrid composites a new unit cell has been identified. Idealization of the proposed unit cell introduces a fiber-matrix interphase into the hybrid composite damping model. Explicit lamina level SDC equations are derived using the strain energy method. The validity and the advantages of the present method have also been demonstrated by performing numerical simulations for conventional as well as shape memory alloy (SMA) hybrid fiber composites.