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).