Journal of Theoretical
and Applied Mechanics

54, 1, pp. 285-293, Warsaw 2016
DOI: 10.15632/jtam-pl.54.1.285

Guided wave propagation in thermal media through the semi analytical finite element method

Faker Bouchoucha, Sonda Chaabane, Mohamed Najib Ichchou, Mohamed Haddar
In this paper, the issue of the estimation of wave propagation characteristics in thermal media is dealt with. A formulation, named the Thermal Semi Analytical Finite Element, based on the semi analytical finite element approach coupled with the thermal effect is offered. Temperature variations affect the mechanical properties of the waveguide. The question
of dispersion curves and group velocities is studied. This study is expected to be of use in the sensitivity analysis of guided waves for wave propagation in thermal environment. Comparisons between numerical and analytical results are given to show the effectiveness of the proposed approach.
Keywords: semi analytical finite element, thermal media, dispersion, velocity