Abstract:
A general approach to solving the problems of nonsteady thermoelasticity for solid bodies in the quasi-static approximation using the Green functions known in the elasticity theory is developed. In the three-dimensional model, analytical expressions are obtained for thermoelastic strains of a body bounded by a plane on one side and exposed to nonsteady heat flows. Analytical expressions for the thermoelastic strain vector components for a body exposed to nonsteady laser radiation are derived. The case of the body surface deformation is analyzed specially. The characteristics of the signals in recording such deformations by an interferometric method or from the variation of the propagation direction of the probe laser beam upon its reflection from the surface are considered.
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