HYBRID COMPOSITES.

This article discusses various issues related to hybrid composites. Smart hybrid composites are developed by incorporating a variety of advanced functional materials, such as shape memory materials, piezoelectric materials, fiber-optics, magnetostrictive materials, eleetrostrictive materials, magnetorheological fluids, electrorheological fluids, and some functional polymers. Smart hybrid composites provide tremendous potential for creating new paradigms for material-structural interactions, and they demonstrate varying success in many engineering applications, such as vibration control, sound control, quiet commuter aircraft, artificial organs, artificial limbs, microelectromechanical systems among a variety of others.