Propagation of slip pulse along frictionless contact interface with local separation between two piezoelectric solids

Abstract

The Stroh formalism of piezoelectric materials, Fourier analysis and singular integral equation technique were used to investigate the existence of a pulse at the frictionless interface in presence of local separation between two contact piezoelectric solids. The two solids were combined together by uniaxial tractions and laid in the electric field. The problem was cast into a set of Cauchy singular integral equations, from which the closed-form solutions were derived. The numerical discussion on the existence of such a slip pulse was presented. The results show that such a slip pulse, which has square root singularities at both ends of the local separation zone, can propagate in most material combinations. And the existence of such a slip pulse will not be affected by the applied mechanical and electric fields in some special material combinations.

Analytical and numerical modeling of resonant piezoelectric devices in China-A review

“…Waves near a frictionless interface with local separation were analyzed in refs. [136,137]. Love waves in a layer between a piezoelectric half-space and a fluid half-space were studied in ref.…”

Propagation of harmonic waves through micro gap with consideration of frictional contact

“…Wang et al [12][13][14][15][16] further analyzed some interesting problems employing an exact method similar to Comninou and Dundurs', e.g., the propagation of SH waves in a layered half space with a frictional contact interface; the re-polarization of elastic waves at a frictional contact interface; and the propagation of elastic waves through a contact interface between two anisotropic or piezoelectric solids. Qiang et al [17] studied the propagation of harmonic waves through a micro gap in presence of smooth contact using Fourier analysis technique and corrective solution method and find that energy partition at the interface is quite sensitive to the gap width.…”