Influence of Interface Conditions on Wave Propagation in Composite Laminates

The propagation of quasicompressional and quasishear waves in a laminated composite material is studied. The composite includes layers of two types that alternate and are free to slip relative to each other. Dispersion equations for these waves are derived and solved numerically in the cases of perfect bonding and sliding of layers. The results are presented as plots of dimensionless velocity of waves on reduced frequency. For each type of waves, the corresponding dispersion curves (modes) plotted for the two types of interface conditions are compared. The velocities of waves in laminated composites with different interface conditions are analyzed. © 2014, Springer Science+Business Media New York.