Bondar O. Influence of thermoelastic fields coupling on stresses distribution in three-dimensional construction elements

The research object is the coupled thermoelastic fields in deformable solids. The research aim is spreading of F-solutions method on the three-dimensional problems of coupled thermoelasticity and its applying on the solving of boundary problems for manifold cylindrical solids. Research methods: with the help of F-solutions method boundary problem for a manifold layer has been reduced to a system of singular integral equations, which have been solved numerically by the mechanical quadrature method. Homogeneous and F-solutions of coupled thermoelasticity have been built; problems about harmonic and impulse stimulation of thermoelastic layer have been solved for the first time, boundary problems for plates, weakened by the holes, and finite length cylinders have been solved for the first time (skew-symmetric case). Influence of the thermomechanical coupling on amplitude-frequency characteristics distribution in finite length cylinders and dynamic stresses concentration in plates and half-plates, weakenedby one or two through-the thickness holes of different cross-sections have been shown for the first time. Introducing of dissertation results is carried out in the Sumy's Machine-Building Joint Stock Company named after Frunze, and in the educational process of the Sumy State University. Fields of application: machine-building, building, scientific-research institutes.