Love wave propagation in layered magneto-electro-elastic structures with initial stress

• DOI: 10.1007/s00707-006-0435-3
• Publication Date: 2007-04-10T11:55:28Z
• Authors: J. Du; X. Jin; J. Wang
• Keywords: 0203 mechanical engineering; 02 engineering and technology

An analytical approach is taken to investigate Love wave propagation in layered magneto-electro-elastic structures with initial stress, where a piezomagnetic (piezoelectric) material thin layer is bonded to a semi-infinite piezoelectric (piezomagnetic) substrate. The magneto-electrically open and short conditions are applied to solve the problem. The phase velocity of the Love wave is numerically calculated for the magneto-electrically open and short cases, respectively. The effect of the initial stress on the phase velocity and the magneto-electromechanical coupling factor are studied in detail for piezomagnetic ceramics CoFe2O4 and piezoelectric ceramics BaTiO3. We find that the initial stress has an important effect on the Love wave propagation in layered piezomagnetic/piezoelectric structures.