Eur. Phys. J. AP
Volume 2, Number 2, May 1998
|Page(s)||117 - 125|
|Published online||15 May 1998|
Thermoelastic analysis under harmonic excitation: Comparison between optical and electronic heat sources
Laboratoire d'Énergétique et d'Optique, Unité de Thermique et d'Analyse Physique,
Faculté des Sciences, BP 1039,
51687 Reims Cedex 2, France
Corresponding author: firstname.lastname@example.org
Revised: 23 December 1997
Accepted: 19 February 1998
Published online: 15 May 1998
The thermal behaviour of a sample submitted to a sinusoidal optical irradiation or a sinusoidal electronic irradiation is modelled in axisymmetrical two- dimensional geometry. This modelling mixes an integral transform and a one-dimensional thermal harmonic response. It shows the spherical thermal behaviour of the harmonic heat diffusion. The same solving method is applied to the Navier-Stokes equation using one-dimensional acoustic harmonic responses. The latter solution leads to the calculation of the displacement field. Finally, the two heat sources are compared from thermal and thermoelastic points of view.
PACS: 44.10.+i – Heat conduction (models, phenomenological description) / 65.70.+y – Thermal expansion and density changes; thermomechanical effects / 62.65.+k – Acoustical properties of solids
© EDP Sciences, 1998
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