THERMOELASTIC ANALYSIS UNDER HARMONIC EXCITATION - COMPARISON BETWEENOPTICAL AND ELECTRONIC HEAT-SOURCES

The thermal behaviour of a sample submitted to a sinusoidal optical ir radiation or a sinusoidal electronic irradiation is modelled in axisym metrical two-dimensional geometry. This modelling mixes an integral tr ansform and a one-dimensional thermal harmonic response. It shows the spherical thermal behaviour of the harmonic heat diffusion. The same s olving method is applied to the Navier-Stokes equation using one-dimen sional acoustic harmonic responses. The latter solution leads to the c alculation of the displacement field. Finally, the two heat sources ar e compared from thermal and thermoelastic points of view.