Open AccessThe Spectral Properties of a Pre-Stressed Thermoelastic Layer Coupled to a Half-Space
Author(s) -
G. Yu Levi
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/753/4/042070
Subject(s) - thermoelastic damping , materials science , mechanics , thermal , stress (linguistics) , action (physics) , phase (matter) , boundary value problem , layer (electronics) , half space , beam (structure) , physics , composite material , optics , thermodynamics , geometry , mathematics , linguistics , philosophy , quantum mechanics
In the framework of the linearized theory of the propagation of thermoelastic waves, a dynamic coupled problem of oscillations of an inhomogeneous medium under the influence of a thermal load oscillating on its surface simulating the action of a frequency-modulated laser beam is considered. The medium is a thermoelastic prestressed layer rigidly adhered to a thermoelastic prestressed half-space. The surface of the layer is free from mechanical stress and insulated outside the area of thermal load acting. At the media boundary thermal insulation condition is considered: ideal thermal contact and. The initial stress state is assumed to be uniform and is created due to preheating and the action of mechanical forces. As an example, the distribution of the phase velocities of the body with initial heating and without it differences are obtained and shown graphically.