FLEXURAL VIBRATION OF PIEZOELECTRIC COMPOSITE HOLLOW CYLINDER

The free vibration of a laminated hollow circular cylinder with tracti on-free surfaces is studied by taking care of continuity conditions at the interfaces. The frequency equations are obtained for the composit e cylinder composed of two different piezoelectric materials belonging to the 6mm class and a hypothetical linear elastic material with void s (LEMV) as bonding layers. Numerical results for complex-valued frequ ency are carried out for the composite cylinder ceramic-1/LEMV/ceramic -2. The dispersion curves for the flexural vibration of a composite ho llow cylinder with voids and without voids are obtained and are compar ed with that of a hollow cylinder of piezoelectric material. (C) 1996 Acoustical Society of America.