Research Article

Numerical Study of Characteristic Equations of Thermoelastic Waves Propagating in a Uniaxial Prestressed Isotropic Plate

Figure 3

Frequency spectra of (a) the dispersion (real wavenumber ) and (b) the attenuation (imaginary wavenumber ) for the symmetric modes (red lines) and antisymmetric modes (black lines) for the thermoelastic waves propagating in an isotropic copper foil under the natural state (without any prestress).
803562.fig.003a
(a)
803562.fig.003b
(b)