RESONANT FRACTURE OF LAYERED CYLINDRICAL PIEZOELECTRIC SENSORS LOADED WITH VISCOUS LIQUID¹⁾

The fracture behavior of a fluid-structure piezoelectric laminated column is studied under the condition of the axial shear vibration. The problem is solved by the variable separation method, the infinite trigonometric series, the Cauchy singular integral equation, the Bessel function and the Lobatto-Chebyshev collocation. The numerical results of the stress intensity factor (SIF) against the frequency are obtained, as well as the effects of the crack angle, the elastic modulus, the piezoelectric coefficient, the dielectric coefficient and the density on the first order resonance behavior of the stress intensity factor.