Abstract
We investigate the effect of rotation on plane wave propagation in a half-space of a piezo-thermoelastic material within the frame of dual-phase-lag model. Normal mode technique is used to obtain analytic expressions for the displacement components, temperature and stress components. Numerical results for the quantities of practical interest are given in the physical domain and illustrated graphically. Comparison is carried out between the results predicted by the dual-phase-lag model and Lord–Shulman theory, in the presence or absence of rotation. It is believed that the present results may be useful in the design and construction of different pyro/piezoelectric devices, such as gyroscopes and sensors.
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Abbreviations
- \(u_{i}\) :
-
The mechanical displacement
- T :
-
Absolute temperature
- \(\sigma _{ij}\) :
-
Stress tensor
- \(E_{i}\) :
-
Electric field
- \(C_{ijkl}\) :
-
Elastic stiffness tensor
- \(\in _{ij}\) :
-
The dielectric moduli
- \(\tau _{\theta }\) :
-
Phase lag of temperature gradient
- \(K_{ij}\) :
-
Heat conduction tensor
- \(C_{T}\) :
-
Specific heat at constant strain
- \(\alpha _{1} ,\alpha _{3}\) :
-
Coefficients of linear thermal expansion
- \(v_{p}=\sqrt{\frac{1}{\rho }C_{11}}\) , :
-
Longitudinal wave velocity
- \(\varphi\) :
-
Electric potential
- \(\varepsilon _{ij}\) :
-
Strain tensor
- \(\beta _{ij}\) :
-
Thermoelastic tensor
- \(D_{i}\) :
-
Electric displacement
- \(e_{ijk}\) :
-
Piezoelectric tensor
- \(p_{i}\) :
-
Pyroelectric moduli
- \(\tau _{q}\) :
-
Phase lag of the heat flux
- \(T_{0}\) :
-
Reference temperature
- \(\rho\) :
-
Mass density
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Ahmed, E.A.A., Abou-Dina, M.S. & Ghaleb, A.F. Plane wave propagation in a piezo-thermoelastic rotating medium within the dual-phase-lag model. Microsyst Technol 26, 969–979 (2020). https://doi.org/10.1007/s00542-019-04567-0
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DOI: https://doi.org/10.1007/s00542-019-04567-0