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JOURNALS // Problemy Fiziki, Matematiki i Tekhniki (Problems of Physics, Mathematics and Technics) // Archive

PFMT, 2025 Issue 1(62), Pages 31–36 (Mi pfmt1011)

PHYSICS

Deformation of elastoplastic rectangular three-layer plate with compressible filler in thermoradiation field

A. S. Melnikova

Belarusian State University of Transport, Gomel

Abstract: The deformation of asymmetrical in thickness elastioplastic three-layer plates with compressible filler under the action of thermoradiation loads is investigated. Kinematic hypotheses are based on the hypothesis of a broken line: for the outer layers, Kirchhof’s hypotheses are accepted, in a rigid compressible filler the deformed normal remains rectilinear. At the contact boundaries, the conditions of continuity of displacements are used. A system of equilibrium equations and its analytical solution in displacements are obtained.

Keywords: plasticity, three-layer rectangular plate, thermal radiation load, compressible filler.

UDC: 539.3

Received: 06.09.2024

DOI: 10.54341/20778708_2025_1_62_31



© Steklov Math. Inst. of RAS, 2025