Viscoelastic fluid effect on the surface wave propagation

Abstract

is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. This is an author-deposited version published in: https://sam.ensam.eu Handle ID AbstractA novel approach based on the exact theory has been developed to accurately predict the behavior of surface Love wave propagating in elastic waveguide loaded on its surface with a viscoelastic fluid. A detailed study was conducted by varying key parameters such as operating frequency, waveguide and substrate. The waveguide surface was subjected to various glycerol concentrations, with a wide range of dynamic viscosity, representing both Newtonian and viscoelastic behaviors. The dispersion curves of attenuation and phase velocity are investigated in function of the above parameters in order to evaluate their sensitivity. The numerical solutions show that the attenuation and phase velocity of surface Love wave are strongly correlated with waveguide thickness and glycerol concentrations. Results also highlighted the substrate thickness effect on the vibration characteristics of the Love wave. Moreover, the Love wave triggers a viscoelastic response in water-glycerol mixtures similar to that of literature. The obtained results are fundamental and can serve as benchmark solution in design of Love wave sensors.

Bleustein–Gulyaev waves in a finite piezoelectric material loaded with a viscoelastic fluid

“…For liquid sensing applications, acoustic waves which have the particle displacement parallel to the device surface and normal to the wave propagation direction are preferred. These waves called shear horizontal waves include Love waves [1,2,3,4,5,6] and Bleustein-Gulyaev waves [7,8,9,10,11,12,13,14,15]. The Bleustein-Gulyaev waves have a single component transverse to the propagation direction.…”

“…The Bleustein-Gulyaev sensor is basically formed by a piezoelectric ceramic covered with a very thin metallic layer [11]. This sensor does not require an aditionnal guiding layer to trap the wave energy to the surface as in the case of the Love Wave sensor [5,6]. Consequently, the fabrication of the Bleustein-Gulyaev sensors is easier than the contruction of the Love wave sensors.…”

Surface wave in a Maxwell liquid-saturated poroelastic layer

“…However, a Maxwell liquid model highlighted a non-monotonically decreasing relationship between the velocity and glycerol mass fraction. Therefore we can conclude that the non-monotonic behavior manifested the intrinsic viscoelastic properties of liquid [12]. Thus, Fig.…”

“…The material properties given in Table 1 for the waveguide and substrate [15,12], and in Table 2 for viscoelastic liquid [12], are taken to construct this numerical example. In this work, numerical calculation is performed in the glycerol concentrations range from 15:4% to 88:0%.…”

“…Surface acoustic wave have been successfully applied in many fields including material characterization, seismology and nondestructive testing. More recently, surface acoustic wave based sensors for applications to liquids environments have been extensively investigated [1][2][3][4][5][6][7][8][9][10][11][12]. The surface acoustic wave sensor directly contacts the liquid to be tested to characterize its physical properties.…”