THERMOELASTIC DEFORMATION OF THREE-LAYER CIRCULAR PLATE BY A SURFACE LOADS OF VARIOUS FORMS

STAROVOITOV Eduard I., D. Sc. in Phys. and Math., Prof., Head of the Department “Structural Mechanics”, Belarusian State University of Transport, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

LEONENKO Denis V., D. Sc. in Phys. and Math., Assoc. Prof., Professor of the Department “Structural mechanics”, Belarusian State University of Transport, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

The formulation of the boundary value problem of axisymmetric deformation of circular elastic steel thickness of the plate under the action of uniformly distributed and parabolic loads is given. The effect of a thermal field on the SSS of a plate is considered. For the asymmetric in thickness three-layer plate we have accepted the kinematic hypothesis of a broken normal. In the thin external layers the Kirchhoff’s hypotheses are accepted. The filler is no compressible through thickness. It’s normal subject to the Tymoshenko hypothesis. The work of arising shear stresses is taken into account. The equations of equilibrium in terms of displacements of the rod were obtained by the Variational method. At the ends of the plate the presence of rigid diaphragms is assumed to prevent the relative shift of the layers. On the bordering surfaces of the layers requires a gluing. The analytical solution of the boundaryvalue problem in the case of a distributed load was obtained. The case of uniformly distributed and parabolic loads was considered. The numerical analysis of the solutions is given.

circular sandwich plate, parabolic loads, thermal field, analytical solution, numerical analysis

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